PowerPoint PresentationA departs from one place P to go to another place Q. At the same time, B...
Transcript of PowerPoint PresentationA departs from one place P to go to another place Q. At the same time, B...
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आप अभी भी NTPC की तैयारी कर सकत ेहैं,समय बबााद ना करे, इसका सहीउपयोग करें,एक बार COURSE जरुर पूरा करने काअंततम मौका||
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PartnershipRace
SimplificationLCM/HCFQuadratic
Linear equationVenn Diagram
DiPermutationCombinationProbability
Chapter cover under this course
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Foundation
Batch For Math
For all competitive
Exam (SSC Category)
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Last time to Join
Number system
(Test of divisibility)
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For Extra 10% Discount
SAHIL10
USE Referral Code:-
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Step-4
Step-5
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Step-6
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Step-7SAHIL10
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Step-8
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8:00PM Let's Crack Maths Percentage (Day-2) By Sahil Sir
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Saturday Special
11:00AM:- Algebra
2:00PM:- C.I. Questions
8:00PM:- Percentage
Continue
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Sunday Special
11:00AM:- Mensuration
(Cpo 2019)
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Mind-blowing QuestionSolution -28
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NTPC LOCK DOWN SERIES SESSION- 32
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A departs from one place P to go to another place Q. At the same time, B leaves to
go from place Q to P. If A and B take 4 and 9 hours respectively to reach their
destinations after meeting each other, the ratio of their speeds will be -
A एक स्थान P से दसूरे स्थान Q को जाने के लिए रवाना होता ह।ै ठीक उसी समय B स्थान Q से P को
जाने के लिए रवाना होता ह।ै यदद परस्पर लमिने के पश्चात् A तथा B अपने गन्तव्यों में पहुँचने में क्रमश:
4 तथा 9 घंटे िेते ह,ै तो उनकी चािों का अनुपात होगा–
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(A) 3 : 2 (B) 5 : 2 (C) 9 : 4 (D) 9 : 13
12.
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One-third of the 4800 employees of a company are officers. If the number of officers
are reduced to half, then the number of officers will be equal to what percentage of
the number of remaining employees of the company?
दकसी कपनंी के 4800 कममचाररयों में से एक–लतहाई पदालिकारी हैं। यदद पदालिकाररयों की सखं्या को
कम करके आिा कर ददया जाए, तो पदालिकाररयों की सखं्या कपंनी के शषे कममचाररयों की सखं्या के
दकतने प्रलतशत के बराबर रह जाएगी?
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(A) 25 (B) 20 (C) 1623
(D) 1558
13.
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The cost of manufacturing an item was Rs 900. The businessman wants to gain
25% even after giving 10% discount on it. How much will he have to determine the
mark price of the item?
दकसी वस्तु के लनमामण की िागत 900 रु. थी। व्यापारी इस पर 10% की छूट दनेे के बाद भी 25% का
िाभ उठाना चाहता ह।ै उसे वह वस्तु का अंदकत मूल्य दकतना लनिामररत करना होगा?
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(A) Rs. 1500 (B) Rs. 1250 (C) Rs. 1200 (D) Rs. 1000
14.
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If a sum of money at simple interest doubles in 12 years, the rate of
annual interest will be-
यदद सािारण ब्याज पर कोई िनरालश 12 वषम में दगुनुी हो जाती ह,ै तो वार्षमक ब्याज की
दर होगी–
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(A) 1623% (B) 7.5% (C) 8
13% (D) 10%
15.
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If 40 men or 60 women or 80 children can do a work in 6 months, then in how many
months will 10 men, 10 women and 10 children together complete half the work?
यदद 40 पुरुष या 60 मलहिाएुँ या 80 बच्चे दकसी कायम को 6 माह में कर सकते हैं, तो 10 पुरुष, 10
मलहिाएुँ और 10 बच्चे लमिकर आिे कायम को दकतने माह में पूरा करेंगे?
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(A) 5𝟔
𝟏𝟑month/माह (B) 6 month/माह
(C) 5𝟕
𝟏𝟑month/माह (D) 11
𝟏
𝟏𝟑month/माह
16.
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In how many times Rs 1000 will be Rs 1331 at 10% CI, while the interest is
compounded every year?
दकतने समय में 1000 रु. की िनरालश 10% वार्षमक चक्रवलृि ब्याज की दर से 1331 रु. हो जाएगी,
जबदक ब्याज प्रलत वषम संयोलजत होता है ?
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(A) 3 years/वषम (B) 212
years/वषम
(C) 2 years/वषम (D) 312
years/वषम
17.
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The height of an equilateral triangle is 4 3 cm. The ratio of the area of its
circumference to the area of its in-circle is.
दकसी समबाह लिभजु की ऊुँ चाई 4 3 समेी ह।ै इसके पररवृत्त के क्षेिफि का इसके अतंवृत्त के क्षेिफि से
अनुपात होगा–
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(A) 2 : 1 (B) 4 : 1 (C) 4 : 3 (D) 3 : 2
18.
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The largest number, which n3 – n, while n is a natural number, is to
divide each number completely:
वह सबसे बडी सखं्या, जो n3 – n, जब दक n एक प्राकृत संख्या ह,ै के रूप की प्रत्येक संख्या
को पूणमत: लवभालजत करे, ह–ै
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(A) 12 (B) 6 (C) 3 (D) 2
1.
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A number between 4000 and 5000 which is divisible by 12, 18, 21 and
32, which of the following?
4000 और 5000 के बीच ऐसी सखं्या जो 12, 18, 21 और 32 से लवभाज्य हो,
लनम्नलिलित में से क्या होगी?
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(A) 4023 (B) 4032 (C) 4302 (D) 4203
2.
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The sum of two numbers is 37 and the difference of their squares is
185. What will be the difference between the two numbers?
दो संख्याओं का योग 37 है और उनके वगों का अंतर 185 ह।ै दोनों सखं्याओं का अंतर क्या
होगा?
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(A) 10 (B) 4 (C) 5 (D) 3
3.
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What is the unit digit in the product (2467)153 × (341)72?
गुणनफि (2467)153 × (341)72 में इकाई का अंक क्या ह?ै
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(A) 7 (B) 3 (C) 9 (D) 1
4.
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The average marks obtained by a student in 6 subjects is 88.
Verification later revealed that his score in a subject was mistakenly
written as 86 instead of 68. The correct average of the marks obtained
by him is-
दकसी लवद्याथी को 6 लवषयों में प्राप्त हए औसत अंक 88 हैं। बाद में सत्यापन करने से यह
पता चिा दक एक लवषय में उसके अंक को गिती से 68 के स्थान पर 86 लिि ददया गया
था। उसके द्वारा प्राप्त अंकों का सही औसत ह–ै
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(A) 87 (B) 85 (C) 84 (D) 86
5.
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Rs 117 between P, Q, R was wrongly divided into 2 : 3 : 4 in place of in
the ratio of𝟏
𝟐:𝟏
𝟑:𝟏
𝟒. Who was in profit in this?
117 रु. को P, Q, R में𝟏
𝟐:𝟏
𝟑:𝟏
𝟒के अनपुात में बाुँटने के स्थान पर गिती से 2 : 3 : 4 के
अनुपात में बाुँट ददया गया। इसमें कौन िाभ में रहा ?
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(A) Only P/केविP (B) Only Q/केविQ
(C) Only R/केविR (D) Both Q and R/Q औरR दोनों
6.
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One school had 1554 students and the ratio of boys to girls was 4: 3. A few days
later 30 girls took admission in that school, some boys left school, as a result the
ratio of boys to girls is 7: 6. What is the number of boys leaving school?
एक लवद्यािय में 1554 लवद्याथी थे और िडकों और िडदकयों की संख्या का अनपुात 4 : 3 था। कुछ
ददनों बाद 30 िडदकयों ने उस लवद्यािय में प्रवशे िे लिया, कुछ िडकों ने लवद्यािय छोड ददया,
पररणामस्वरूप िडकों और िडदकयों का अनपुात 7 : 6 हो गया। लवद्यािय छोडने वािे िडकों की
संख्या दकतनी ह?ै
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(A) 76 (B) 74 (C) 84 (D) 86
7.
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The average age of a woman and her daughter is 21 years. Their age
ratio is 5: 1 respectively. What will be the ratio of their ages after 5 years?
एक मलहिा और उसकी पिुी की औसत आयु 21 वषम ह।ै उनकी आयु का अनपुात क्रमश: 5 : 1
ह।ै 5 वषम बाद उनकी आयु का अनुपात क्या होगा?
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(A) 10 : 3 (B) 5 : 2 (C) 4 : 1 (D) 3 : 1
8.
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For completing a task, the ratio of man, woman and boys was kept 1: 2: 3 and
their wages were kept in the ratio of 6: 3: 2. If the number of men is 50 and the
total daily wage is Rs 3150, then what will be the weekly wage of a woman?
दकसी कायम का परूा करने के लिए आदमी, मलहिा और िडकों का अनपुात 1 : 2 : 3 रिा गया तथा
उनकी मजदरूी 6 : 3 : 2 के अनपुात में रिी गई। यदद आदलमयों की सखं्या 50 हो तथा कुि दलैनक
मजदरूी 3150 रुपये हो, तो एक मलहिा की साप्तालहक मजदरूी क्या होगी?
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(A) Rs. 72.50 (B) Rs. 70.50 (C) Rs. 75.50 (D) Rs. 73.50
9.
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A and B partner in a business by investing capital of Rs 10,000 and Rs 4,000 respectively.
The condition of the partnership is that B will get Rs 100 per month for taking care of
business. The annual profit will be distributed in proportion to the capital levied on the
capital after paying interest at the rate of 5% per annum. Find the share of B in the annual
profit of Rs. 4000.
A और B एक व्यापार में क्रमश: 10,000 रुपये और 4,000 रुपये की पूुँजी िगाकार साझेदारी करते हैं। साझेदारी
की शतम है दक B को व्यापार की दिेभाि के लिए 100 रुपये प्रलतमाह लमिेंग।े वार्षमक िाभ, पूुँजी पर 5% प्रलत वषम
की दर से ब्याज का भगुतान करने के बाद उनके द्वारा िगाई गयी पूुँजी के अनुपात में बाुँट ददया जाएगा। 4000
रुपये के वार्षमक िाभ में B का लहस्सा ज्ञात कीलजए।
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(A) Rs. 1500 (B) Rs. 1800 (C) Rs. 1600 (D) Rs. 2000
10.
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Find two such numbers which are arbitrary 6 and tertiary 20.25.
ऐसी दो संख्याएुँ ज्ञात कीलजए लजनका मध्यानुपाती 6 तथा तृतीयानुपाती 20.25 हो।
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(A) 3 and 9/3 एवं9 (B) 4 and 9/4 एवं9
(C) 9 and 8/9 एवं8 (D) 5 and 12/5 एवं12
11.
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The same amount of water is taken out of 20% milk from a vessel filled
with pure milk and this process is repeated three times. After the third
operation, the quantity of pure milk in the vessel will be reduced to
what?
शुि दिू से भरे हए दकसी बतमन से 20% दिू को लनकािकर उतनी ही मािा का पानी डाि
ददया जाता है तथा यह प्रदक्रया तीन बार दोहराई जाती ह।ै तीसरी सदंक्रया के बाद बतमन में
शुि दिू की मािा घटकर दकतनी रह जाएगी?
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(A) 40.0% (B) 50.0% (C) 51.2% (D) 58.8%
12.
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Nikita bought 30 kg of wheat for Rs 9.50 per kg and 40 kg of wheat for Rs 8.50 per
kg and mixed them. He Sold the mixture at Rs 8.90 per kg. How much was his profit
or loss in the deal?
लनकीता ने 30 दकग्रा गहेुँ 9.50 रु., प्रलत दकग्रा तथा 40 दकग्रा गहेुँ 8.50 रु. प्रलत दकग्रा के भाव से िरीदा
और उन्हें लमिा ददया। लमश्रण को उसने 8.90 रु. प्रलत दकग्रा के भाव से बचेा। सौदे में उसका िाभ या
हालन दकतनी रही?
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(A) Rs 2 Loss of/2 रु. कीहालन (B) Rs 2 profit of/2 रु. कीिाभ
(C) Rs 7 Loss of/7 रु. कीहालन (D) Rs 7 profit of/7 रु. कीिाभ
13.
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A trader gives a discount of 8% on all his goods and still makes a profit
of 15%. If an item is marked ₹ 250, what will be its cost price?
एक व्यापारी अपने सभी सामान पर 8% की छूट दतेा है और दफर भी 15% का िाभ
कमाता ह।ै यदद एक वस्तु पर ₹ 250 अंदकत ह,ै तो उसका िागत मूल्य क्या होगा?
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(A) ₹ 180 (B) ₹ 200 (C) ₹ 230 (D) ₹ 187
14.
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A man covers a distance of 24 km at a speed of 6 km / h, another a
distance of 24 km at a speed of 8 km/h and a third distance of 24 km at
a speed of 12 km/h. His average speed (in km/h) for the entire journey
is-
एक आदमी 24 दकमी की दरूी 6 दकमी/घटंा की चाि स,े एक अन्य 24 दकमी की दरूी 8
दकमी/घटंा की चाि से तथा एक तीसरी 24 दकमी की दरूी 12 दकमी/घटंा की चाि से तय
करता ह।ै पूरी यािा के लिए उसकी औसत चाि (दकमी/घंटा में) ह–ै
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(A) 823
(B) 8 (C) 21013
(D) 9
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A tower standing on a horizontal plane makes a fixed angle from a point 160 meters
away from its base (foot). When the point is taken towards the base of 100 meters,
the angle made by the tower is doubled. Accordingly, what is the height of that
tower?
एक क्षैलतज ति पर िडी हई मीनार अपने मिू आिार (पाद) से 160 मीटर दरू के एक लबन्दु से एक
लनलित कोण बनाती ह।ै उस लबन्दु को 100 मीटर आिार की ओर िे जाने पर मीनार से बना कोण पहिे
का दगुुना हो जाता ह।ै तदनुसार, उस मीनार की ऊुँ चाई दकतनी ह?ै
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(A) 80 m/मी. (B) 100 m/मी. (C) 160 m/मी. (D) 200 m/मी.
16.
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Directions (19-22): The following table shows the production of cars (in thousands) from
1999 to 2004 in a company. Study the table and answer the questions given below.
लनदशे (19-22) : लनम्नलिलित तालिका में एक कम्पनी में, 1999 से 2004 तक कारों का उत्पादन (हजारों में)
ददिाया गया ह।ै तालिका का अध्ययन कीलजए और नीचे ददए गए प्रश्नों के उत्तर दीलजए।
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Year/वषम 1999 2000 2001 2002 2003 2004
Type/प्रकार
P 8 20 16 17 21 6
Q 16 10 14 12 12 14
R 21 17 16 15 13 8
S 4 6 10 16 20 31
T 25 18 19 30 14 27
कुि 74 71 75 90 80 86
Q.
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In which year was the total production of cars of type P and Q is equal to the total
production of cars of type R and S?
दकस वषम में P और Q प्रकार की कारों का कुि उत्पादन R और S प्रकार की कारों के कुि उत्पादन के
बराबर था ?
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(A) 2000 (B) 2001 (C) 2003 (D) 2004
17.
Year/वषम 1999 2000 2001 2002 2003 2004
Type/प्रकार
P 8 20 16 17 21 6
Q 16 10 14 12 12 14
R 21 17 16 15 13 8
S 4 6 10 16 20 31
T 25 18 19 30 14 27
कुि 74 71 75 90 80 86
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In which year the total production of all types of cars was almost equal to the annual
average of total production during the period 1999 to 2004?
दकस वषम में सभी प्रकार की कारों का कुि उत्पादन 1999 से 2004 की अवलि के दौरान कुि उत्पादन के
वार्षमक औसत के िगभग बराबर था ?
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(A) 1999 (B) 2001 (C) 2003 (D) 2004
18.
Year/वषम 1999 2000 2001 2002 2003 2004
Type/प्रकार
P 8 20 16 17 21 6
Q 16 10 14 12 12 14
R 21 17 16 15 13 8
S 4 6 10 16 20 31
T 25 18 19 30 14 27
कुि 74 71 75 90 80 86
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The production of which type of cars was 25% of the total production of all types of
cars during the year 2003?
दकस प्रकार की कारों का उत्पादन वषम 2003 के दौरान सभी प्रकार की कारों के कुि उत्पादन का 25%
था?
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(A) P (B) Q (C) R (D) S
19.
Year/वषम 1999 2000 2001 2002 2003 2004
Type/प्रकार
P 8 20 16 17 21 6
Q 16 10 14 12 12 14
R 21 17 16 15 13 8
S 4 6 10 16 20 31
T 25 18 19 30 14 27
कुि 74 71 75 90 80 86
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During the period from 1999 to 2004, what type of cars produced a steady
increase?
1999 से 2004 की अवलि के दौरान दकस प्रकार की कारों के उत्पादन में सतत् वृलि हई ?
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(A) P (B) Q (C) R (D) S
20.
Year/वषम 1999 2000 2001 2002 2003 2004
Type/प्रकार
P 8 20 16 17 21 6
Q 16 10 14 12 12 14
R 21 17 16 15 13 8
S 4 6 10 16 20 31
T 25 18 19 30 14 27
कुि 74 71 75 90 80 86
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Give Answer In Comment box
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8:00PM Let's Crack Maths Percentage (Day-2) By Sahil Sir
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Railway maths live test
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Last time to Join
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Step-4
Step-5
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Step-6
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Step-7SAHIL10
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Step-8
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Step-1
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Step-2
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Step-3
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Step-4
Step-5
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Step-6
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Step-7
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