Question

the ages of Rahul and Haroon are in the ratio 5:7 .Four year later the sum of their ages will be 56 years what are their present ages

Answer 1

Present age ratio
Rahul : Haroon = 5:7
Rahul = 5 X
Haroon = 7 X
After 4 years,
Rahul = 5 X + 4
Haroon = 7 X + 4
Sum = 56
5 X + 7 X + 8 = 56
12 X = 48
X = 4
Rahul's present age = 5 X = 20 years
Haroon's present age = 7 X = 28 years
Hope it helps.

Answer 2

$\huge{\underline{\bigstar{\sf{solution !!}}}}$

The ages of Rahul and Haroon are in the ratio 5:7

Let Rahul’s present age=5x

Haroon present age=7x

Four years later the sum of their ages will be 56 years. So according to the condition,

(5x+4)+(7x+4)=56

12x+8=56

12x=56–8

12x=48

x=48/12

x=4

Therefore

$\large{\boxed{\sf{Rahul’s\: present \:age = 5*4=20years}}}$

$\large{\boxed{\sf{Haroon’s\: present \: age =7*4=28years}}}$