Question

The sum of the present ages of Madhav and Nidhi is
75 years. Madhav's age nine years from now will be
twice of Nidhi's age twelve years ago. What is the
present age of Madhav?​

Answer 1

Answer:

present age of

madav=39 year's

Step-by-step explanation:

let present ages of

madhav and nidhi x and y

Atq

x+y=75 (1)

x=75-y

and

x+9=2(y-12)

x+9=2y-24

75-y+9=2y-24

3y=108

y=36 year's (nidhi)

substitute y in (1)

x+36=75

x=75-36=39 year's (madhav)

Answer 2

Let Madhav's age be x and Nidhi's age be y.

Now ATQ,

x+y=75

x+9=2y-24

x-2y =-24-9

75-y=2y-24

75+24=2y+y

99=3y

y=33

now,we conclude

x+33=75

x=75-33

x=42.

thank you