Question

please answer the question
and the answer sheet for helpful =madan=10,mohan=6​​

Answer 1

Hope it helps

Let

Present age of Madan = m years old

Present age of Mohan = n years old

Sum of their ages is 16

m+n=16

m=16-n......................(1)

Four years ago

Madan was = m-4 years old

Mohan was = n-4 years old

Then

Madan was thrice old as Mohan

m-4=3(n-4)

m-4=3n-12

m=3n-12+4

Put the value of m from (1) to (2)

16-n=3n-8

-n-3n=-8-16

-4n=-24

-4n/-4=-24/-4

n=6

Put the value of n in (1)

m=16-n......................(1)

m=16-6

m=10

Present age of Madan = m = 10 years old

Present age of Mohan = n = 6 years old