Question

ruchi is 4 years older than monica,and sum of their ages is 20. find the ages​

Answer 1

Step-by-step explanation:

let age of monika =x

let age of ruchi =x+4

sum of their age =20

x+x+4=20

2x+4=20

2x=20-4

2x=16

x=16/2

x=8

Answer 2

Given : Ruchi is 4 years older than monica,and sum of their ages is 20

To find : Ages of Ruchi & Monika

Solution:

Let say age of monika  = M years

Ruchi is 4 years older than monika

=> ruchi age = M +  4  Years

Sum of ages of ruchi & monika

= M + M + 4

= 2M + 4 Years

Sum of thir ages is given as  20  Years

Equating

2M + 4 = 20

=> 2M = 16

=> M = 8

Monika age = 8 years

Ruchi age = 8 + 4 = 12  Years

Monika age = 8 Years  Ruchi age = 12 years

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