Question

product of pragati's age 2 years hence is 84. find her present age.

Answer 1

Answer:

The question is wrong.

Step-by-step explanation:

it is that the product of Pragati age 3 years ago and 2 years hence is 84 then find the present age.

Soln. Let the age of Pragati three years ago is X - 3

And age of Pragati 2 years hence is X + 2

As per given condition

(X - 3 )( X +2)

X^2 +2x -3x -6=84

X^2-x-90=0

X^2-10x+9x-90=0

X(x-10) +9(x-10)=0

(X-10) (x+9)=0

X-10=0 or x+9=0

Hence,

X=10is the solution.