Problems based on Numbers Test 2

Question : 38 of 40

Marks: +1, -0

Twenty times a positive integer is less than its square by 96. What is the integer?

Solution:

Let the positive integer be x; then

x^2 - 20x = 96

⇒ x^2 - 20x – 96 = 0

⇒ (x + 4) (x - 24) = 0

⇒ x = 24

(A positive value)

Go to Question:

Prev Question

Next Question