Question

The ages of A and B are in the ratio 5 : 7. Five years ago. their ages were in the ratio 5 : 8. The respective present ages (in years) are:

पर्याय

• 10, 14

• 20, 28

• 25, 40

• 15, 21

Answer 1

15, 21

Explanation:

	A		B
Past `->`	5 × 2	:	8 × 2
	`↑` 5		`↑` 5
Present `->`	5 × 3	:	7 × 3

               ⇒ : 5 `->` 5 years

                   : 15 `->` 15 years

                   : 21 `->` 21 years