1.

The product of a number and 2 more than that is 168, what are the numbers?

Answer»

Let the number be x

x(x+2) = 168

x2 + 2x = I68

x2 + 2x + 1 = I68 + 1

(x+1)2 = 169

x + 1 = ± 13

x + 1 = 13

x + 1= – 13

x = 13 – 1 = 12

x = -13 – 1 = – 14

The number is 12 and 14 or – 12 and – 14



Discussion

No Comment Found

Related InterviewSolutions