Question

Pip was thinking of a number. Pip divides by 2, then adds 3 to get an answer of 13. What was the original number?

Answer 1

Answer:

20

Step-by-step explanation:

Let the number pip was thinking, be x

Therefore, we get the equation

(x/2)+3 = 13

x/2       = 13 - 3

x/2       = 10

x           = 10*2

x          = 20

Verify

( 20 / 2 ) + 3  =  13

10            + 3 = 13

                 13 = 13

             LHS = RHS

Hence proved.