Let the present age of Sonu is 7x years
Present age of Monu is 5x years
Sonu’s age after 10 years = (7x + 10)years
Monu’s age after 10 years = (5x + 10)years
According to the question:
On cross multiplication, we get
Therefore present age of Sonu is 7x = 7 \(\times\) 5 = 35years
Present age of Monu is 5x = 5 \(\times\)5 = 25years