UPSC CDS/OTA

Age

Mathematics

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Age

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Questions

30

Time

30 min

Marks

30

Solutions

All inline

Q1The sum of ages of A and B is 50 years. Four years ago, the ratio of their ages was 3:2. Find the present age of A.ModerateSolve →Q2The present age of the father is three times the age of his son. After 15 years, the father's age will be twice that of his son. Find their present ages.ModerateSolve →Q3The average age of 4 children born at intervals of 2 years each is 8 years. Find the age of the youngest child.EasySolve →Q4Ten years ago, the ratio of the ages of A and B was 7:5 and the sum of their present ages is 64 years. Find A’s present age.ModerateSolve →Q5Five years ago, the ratio of the ages of A and B was 9:7. Ten years hence, the ratio will be 11:9. Find their present ages.DifficultSolve →Q6The sum of the ages of a father and his son is 60 years. Five years ago, the father's age was four times the son's age. Find the son's present age.ModerateSolve →Q7The ratio of present ages of A and B is 5:7. After 6 years, the ratio becomes 3:4. Find the present age of A.ModerateSolve →Q8Four years ago, the ratio of ages of a father and his son was 11:4. Four years hence, the ratio will be 13:6. Find present ages.DifficultSolve →Q9The present age of a mother is 3 times that of her daughter. After 10 years, the mother's age will be twice the daughter's age. Find their present ages.ModerateSolve →Q10The sum of ages of A, B, C is 80 years. Five years ago, their ages were in the ratio 2:3:4. Find the present age of C.DifficultSolve →

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