Dear Readers,
Q9. Present ages of father and the son are in the ratio of 6 : 1 respectively. Four years hence the ratio of their age will become 4 : 1 respectively. What is the present age of son?
Practice is the key to perfection in Quant, so brush up your skills and test yourself with these 15 questions of Quantitative Aptitude for IBPS RRB PO and Clerk 2017.
Q1. 10 years ago, the ratio of age of A and B was 3 : 2 and after 10 years, their ages ratio will become 4 : 3. Find the sum of their present age.
Q2. 10 years ago, ratio of the ages of A and B was 3 : 1 and after 10 years, the ratio of their ages will become 2 : 1. Find the sum of their present ages.
Q3. There are total 600 students in a school. Average age of boys is 12 years and of girls is 11 years while average age of all students is 11 yrs. And 9 months. Find the number of girls in the school.
Q4. There are 40 boys in a class whose average age is 16 yrs. If a new boy replaces a boy who is 17 years old then the new average becomes 15.875 years. What is the age of new boy?
(a) 12 yrs.
(b) 15 yrs.
(c) 13 yrs.
(d) 14 yrs.
(e) 16 yrs.
Q5. The average age of 8 men is increased by 2 years when two of them whose ages are 21 and 23 years are replaced by two new men. The average age of the two new men is
(a) 25 yrs.
(b) 30 yrs.
(c) 35 yrs.
(d) 40 yrs.
(e) 60 yrs.
Q6. Four years ago, the ratio of the ages of A and B was 2 : 3 and after 4 years it will become 5 : 7. Find their present ages.
(a) 36 yrs., 52 yrs.
(b) 37 yrs., 37 yrs.
(c) 35 yrs., 51 yrs.
(d) 35 yrs., 50 yrs.
(e) 32 yrs., 50 yrs.
Q7. The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is
(a) 34 yrs.
(b) 36 yrs.
(c) 38 yrs.
(d) 40 yrs.
(e) 45 yrs
Q8. The average age of a family of 10 members is 20 years. If the age of the youngest member of the family is 10 years, then the average age of the members of the family just before the birth of the youngest members was approximately-
(a) 10 years
(b) 6 years
(c) 4 years
(d) 8 years
(e) None of these
Q10. At present age of father is three times the age of his son. Four years hence the ratio between the ages of father and son becomes 13 : 5 respectively. What is the present age of father?
(a) 48 years
(b) 42 years
(c) 52 years
(d) Can’t be determined
(e) None of these
Q11. The ratio of present ages of two brothers is 1 : 2 and 5 years back the ratio was 1 : 3. What will be the ratio of their ages after 5 years?
(a) 1 : 4
Q12. Four years ago, the ratio of A’s age to B’s age was 11 : 14 and four years later their ages will be in the ratio later their ages will be in the ratio 13 : 16. The present age of A is :
(a) 48 years
(b) 26 years
(c) 44 years
(d) 28 years
(e) None of these
Q13. Two years ago, A was four times as old as B. 8 years hence, A’s age will exceed B’s age by 12 years. The ratio of the present ages of A and B is:
(b) 4 : 1
(c) 3 : 2
Q14. A father’s age is three times the sum of the ages of his two children, but 20 years hence his age will be equal to the sum of the ages of his children. The father’s age is:
(a) 30 years
(b) 40 years
(c) 35 years
(d) 45 years
(e) None of these
Q15. Ratio of Sujeet’s age to Sameer’s age is 4 : 3. Sujeet will be 26 years old after 6 years. Then the present age of Sameer is:
(a) 21 years
(b) 15 years
(c) 24 years
(d) 18 years
(e) 20 years
Answers will be updated soon....
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