Question

Mark the correct alternatives in each of the following:

What should be divided by 6 to get −18?

(a) −3 (b) 3 (c) −108 (d) 108

Answer 1

Let x be divided by 6 to get −18.

$$\begin{gathered} \therefore x÷6=-18 \\ \Rightarrow \frac{x}{6}=-18 \end{gathered}$$

Putting x = −108, we get

LHS = $\frac{-108}{6}=-\frac{\left|-108\right|}{6}=-\frac{108}{6}=-18$ = RHS

Thus, −108 should be divided by 6 to get −18.

Hence, the correct answer is (c).