Question

the product of kumaran age is two years ago and his age four years from now is one more than twice his present age.what his present age​

Answer 1

Step-by-step explanation:

kumarans present age is 3 yrs

Answer 2

The present age of Kumaran is 3 years.

• Let the present age of Kumaran be x years.

• Kumaran's age two years ago was (x - 2).

• Kumaran's age four years from now would be (x + 4).

• Twice the present age of Kumaran = 2x

• According to the question,

(x - 2) (x + 4) = 2x + 1

=> (x × x) + (x × 4) - (2 × x) - (2 × 4) = 2x + 1

=> x² + 4x - 2x - 8 = 2x + 1

=> x² + 2x - 8 = 2x + 1

=> x² + 2x - 8 - 2x - 1 = 0

=> x² + 2x - 2x - 8 - 1 = 0

=> x² + 0 - 9 = 0

=> x² - 9 = 0

=> x² = 9

=> x² = √9

=> x = + 3, - 3

• Since age cannot be a negative number, - 3 is discarded.

Therefore, the present age of Kumaran is 3 years.