Question

The ratio of ages of three friends A, B & C is 4:6:7. If
the eldest of them is of 21 years, what is the
difference between the ages of C and A?​

Answer 1

Answer:

9 years

Step-by-step explanation:

A : B : C = 4 : 6 : 7

Eldest person, C = 7

7 -------- 21 years

So,

1 --------- 3 years

C - A = 7 - 4 = 3

3 -------- 9 years