Question

Malachy was thinking of a number. Malachy doubles it and gets an answer of 91.6. What was the original number?

Answer 1

45.8

Explanation:

2(X) = 91.6

X = 91.6/2

X = 45.8

Answer 2

45.8

Explanation:

Say the number Malachy was thinking of is x.

Doubling it gives 2x, which we see also equals 91.6. Set these equal to each other:

2x = 91.6

To solve, we divide both sides by 2 and get x = 45.8, which is our answer.