Unit 4 Review Questions and Answers
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Transcript of Unit 4 Review Questions and Answers
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Unit 4 Review Questions and Answers
Unit 4 Test: Tuesday, December 4th
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Question 1
What is 60% of 40?
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Answer 1
24
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Question 2
What is 15% of 6kg?
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Answer 2
0.9kg
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Question 3
A box has 840 mugs. 30% of them are green mugs. How many green mugs are in the box?
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Answer 3
There are 252 green mugs in the box.
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Question 4
There are cubes of three different colors in a box. 26% of them are blue, 18% are white and the rest are red. What percent of the cubes is red?
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Answer 4
56% of the cubes are red
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Question 5
There are cubes of three different colors in a box. 26% of them are blue, 18% are white and the rest are red.
If there are 200 cubes, what is the total number of blue and red cubes?
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Answer 5
164 of the cubes are red and blue
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Question 6
Bob earns $750 in a week. He got a 15% increase in his pay the following week. What is the increase in his pay?
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Answer 6
His increase in pay is $112.50
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Question 7
A party was being organized for 130 people. There was a 30% increase in the number of guests in the guest list. How many more people were invited?
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Answer 7
39 more people were invited
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Question 8
There are 40 students in a class. On Monday, 5% of the students were absent from school. On Tuesday, 10 students were absent from school.
How many students were absent from school on Monday?
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Answer 8
2 students were absent from school on Monday
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Question 9
There are 40 students in a class. On Monday, 5% of the students were absent from school. On Tuesday, 10 students were absent from school.
What was the percent increase in the number of absentees from Monday to Tuesday?
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Answer 9
400% increase in the number of absentees from Monday to Tuesday
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Question 10
The price of a book was $16. When it became popular, the new price was $30. What was the percent increase in its price?
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Answer 10
87.5% increase in price
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Question(s) 11
Find the amount Janice has to pay for the items below if the sales tax is 12%. A calculator priced at $45 A sofa priced at $1250 A stereo priced at $640
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Answer(s) 11
Calculator: $50.40
Sofa set: $1,400
Stereo: $716.80
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Question 12
Mr. Tim’s family dined at Morton’s Restaurant and the bill came up to $128. He needed to pay a tip of 15%. What was the total amount Mr. Tim paid?
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Answer 12
Mr. Tim paid $147.20
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Question 13
A box of biscuits weighs 300 g with an additional 20%. What was the weight of the original box of biscuits?
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Answer 13
The box of biscuits originally weighed 250g
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Question 14
Isaac placed his money in a bank with a 5% interest per year. He had $525 in the bank after a year. How much was his original deposit?
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Answer 14
He originally deposited $500 in his account
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FINAL QUESTION
A tool set costs $90. However, there was a 25% discount when Mr. Manning bought it. He had to pay a sales tax of 10%. How much did he pay for the tool set in the end?
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FINAL ANSWER
Mr. Manning paid $74.25 for the tool set