Question

Naresh is older than his sister
by 3 years and the sister is older
than her younger brother by 5 years.If the sum of their ages is 55, find Naresh's age.​

Answer 1

Answer: 21

Step-by-step explanation:

Let age of the younger brother = x years

∴Naresh's sister's age = x + 5 years

and Naresh's age is = 3 + (x + 5)

= x + 8 years

Now sum of ages of Naresh and his sister = 55

or x + 8 + x + 5 = 55

2x + 13 = 55

2x = 55 - 13

2x = 42

x = 42/2

x = 21

Naresh's age is 21

Answer 2

Answer:

22

Step-by-step explanation:

Let the age of younger brother be x

then his sister is x+5

Naresh will x+5+3

according to question

x+x+5+x+5+3=55

3x+13=55

3x=55-13

3x=42

x=42÷3

x=14

naresh =x+5+3

=22