Question

jaya and vinay's cpmbined age is 72 in the ratio 4:5 how old is vinay

Answer 1

Hello,
we indicate with J and V the age of Jaya e Vinay.

we have that:
J+V=72 and J=4/5V


replacing, we obtain:
4/5V+V=72;
4v+5V=72×5;
9V=360;
V=360:9=40 years
and
J=(40:5)×4=8×4=32 years


Vinay is 40 years old.

Bye :-)

Answer 2

Vinay is 40 years old