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PROBLEMS ON AGES

1. A persons present age is two-fifth of the age of his mother. After 8 years, he will

be one half of the age of his mother .How old is the mother at present ?

2. Tanyas grandfather was 8 times older to her 16 years ago. He would be 3

times of her age 8 years from now. Eight years ago ,what was the ratio of Tanyas

age to that of her grandfather?

3. In 10 years , A will be twice as old as B was 10 years ago. If A is now 9 years

older than B , the present age of B is?

4. The difference between the ages of two persons is 10 years . Fifteen years ago ,

the elder one was twice as oldest the younger one . Find the age of the elder

person?

5. Snekas age is 1/6 th of her fathers age .Sneka fathers age will be twice of

vimals age after 10 years . If vimals eighth birthday was celebrated two years

before , then what is snekas present age?

6. The total age of A and B is 12 years more than the total age of B and C . C is how

many years younger than A?

7. one year ago kavitha was four times as old as her daughter sakshi . Six years

hence, kavithas age will exceed her daughter s age by 9 years . Find the Ratio of

the present ages of Kavitha and her daughter?

8. The ratio of the fathers age to his sons age is 7:3 . The product of their ages is

756. Find the ratio of their ages after six years?

9. Ayeshas father was 38 years of age when she was born while her mother was 36

years old when her brother four years younger to her was born . What is the

difference between the ages of her parents?

10. The present ages of three persons are in proportions 4:7:9 .Eight years ago , the

sum of their ages was 56. Find their present ages?

AVERAGE PROBLEMS

1. Find the average of first 40 natural numbers?

2. Find the average of first 20 multiple of 7?

3. The average of four consecutive even number is 27. Find the length of these

numbers?

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4. There are two section A and B of a class consisting of 36 and 44 students

respectively. If the average weight of section A is 40 and that of section B is 35 kg.

Find the average weight of the whole class?

5. The average of 25 result is 18, the average of first twelve of them is 14and

that of last twelve is 17. Find the thirteen result.?

6. The average weight of ABC is 45. If the average C weight of A and B be 40 kg

and that of B&C be 43 kg. Find the weight of B?

7. The average age of 36 student in a class is 14 years. When teachers age is

included to it, the average increased by one. What is the age of the teacher?

8. The average weight of 10 oarsmen in a boat is increased by 1.8 kg when one

of the crew, whose weight 53 kg is replaced by a new man. Find the weight of the

new man?

9. A batsman makes a score of 87 runs in the 17th innings and thus increaseshis average by 3. Find his average after 17th innings.

10. A crickets has a certain average for 10 innings. In the eleventh innings, he

scored 108 runs, thereby, increasing his average by 6 runs. Find this new average?