Question

The ages of Sonu and monu are in the ratio 7:5 ten years hence the ratio of their ages will be 9:7find their present ages

Answer 1

Step-by-step explanation:

Let the present aged of

sonu=7x

monu=5×

after 10 years the ages of

sonu=7x+10

monu=5x+10

(AS PER QUESTION)

after 10 years, the ratio of their ages

Will be 9:7

hence 7x+10÷5x+10=9÷7

By cross multiplication

49x+70=45x+90

49x-45x=90-70

4x=20

×=5

so,

sonu present age=7x=7 (5)=35years

monu present age = 5x =5 (5)=25 years