Question

When 19 times a number by

20 the answer is the
same as when 120 is decreased
by the number. Find the number..

Answer 1

0.316

Explanation:

19 x 20 = 380 x N

120 - N = 380 x N

We realize this can only be a decimal number.

We try 0.316 x 19 x 20 = 120

When we decrease 0.316 from 120 it is 119.7

Rounded up it is the same as 120.