Question

at present mohan is 12 years older than kiran after 10 years kiran will be 25 years old what is mohan present age

Answer 1

After 10 years , Kiran's age will be 25 years
So Kiran's present age is 25-10=15 years
Therefore , Mohan's present age = 15+12 = 27 years.

Hope it helps...

Answer 2

25-10=15
15+12=27
kiran is 15
mohan is 27