Problems based on Ages

Quantitative Aptitude (CDS)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

In 10 years A will be twice as old as B was 10 years ago. If A is 9 years older than B now what are present ages of A and B respectively?

29year and 49year

25year and 45year

20year and 39year

39year and 48year

A= B+9

A+10 = 2(B-10)

-A +2B = 30.......(i)

A-B = 9 ...........(ii)

From (i) and (ii)

B= 39year

A= 48year