Question

The product of Raju’s age 5 years ago with his age 9 years later age is 15 find Raju’s present age

Answer 1

Step-by-step explanation:

Let , Raju's present age = x

before 5 years , age is = x-5

After 9 years , age is = x+9

product = 15

(x-5)*(x+9) = 15

x²+4x-45 = 15

x²+4x-60 = 0

x² + 10x - 6x - 60 = 0

x(x+10)-6(x+10) = 0

(x+10)(x-6) = 0

x = -10 not possible

x = 6 ✓

So , Raju's present age will be six years.

Answer 2

Raju’s present age is 6 years. Now don’t ask why