Question

The ratio of ages of two person is 4:7 and age of
one of them is greater than that of another by 30 years, the sum of their ages is.​

Answer 1

Answer:

Description for Correct answer:

A : B

age 4 : 7

4x : 7x

=> 3x = 30 years (Given)

x = 10 years

∴ Age of A = 4×10=40

age of B = 7×10=70

sum of ages of A + B = 40 + 70 = 110

Answer 2

Answer:

The ratio of ages of two person is 4:7

Let the common multiple be x

Therefore the age of two person will be 4x and 7x

As per the condition given,

7x-4x=30

3x=30

x=10

Substituting the value of x in both the ages,

4x=4×10=40

7x=7×10=70

Therefore sum of both the ages will be

4x+7x=40+70=110

Answer:110

Hope it helps u