Question

The product two successive multiples of 5 is 100 what are the value of these

Answer 1

Answer:

15, 20 or -15, -20

Hint :

Let the successive multiples of 5 be 5x and 5(x + 1). Then,

5x.5(x + 1) = 300 ⇒x

2

+ x = 12 ⇒x

2

+ x - 12 = 0