Question

A rational numbers is such that when you multiply it by 5/2 and add 2/3to the product,You get _ 7/12 .What is the number?​

Answer 1

Answer:

Here goes the solution,

Let the rational number be x.

x is multiplied with 5/2 = 5x/2

According to the question,

5x/2 + 2/3 = -7/12

5x/2 = -7/12-2/3

5x/2 = (-7-8)/12

5x/2 = -15/12

x = (-15/12) × (2/5)

x = (-30/60)

x = (-1/2)

So, the required number is -1/2