Question

sum of ages of A and B is 29 years A is younger than B by 3 years​

Answer 1

Answer:

Age of A and B=29years

Let A age = x

Let B age=x+3

X+X+3=29

2x=29-3

X=26/2

X=13

A age will be =13

B age will be=13+3=16

Hope it will help you....

Answer 2

Age of A = 13 years

Age of B = 16 years  

Given:

Sum of ages of A and B is 29 years

A is younger than B by 3 years​

To find:

The ages of A and B

Solution:

Given Sum of A and B = 29 years

⇒ A + B = 29 ------(1)

A younger than B by 3 years

⇒ A = B - 3

⇒ A - B = -3 -----(2)

add (1) and (2)

⇒  A + B + A - B = 29 - 3

⇒ 2 A = 26

⇒ A = 26/2 = 13

Age of A = 13 years

Substitute A = 13 in A + B = 29  

⇒ 13 + B = 29

⇒ B = 29 - 13 = 16 years

Age of B = 16 years

Therefore,

Age of A = 13 years

Age of B = 16 years

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