Question

Find the ratio of the first quantity to the second.

(1) 15 seconds, 1 minute

Answer 1

We have to convert the quantities to the same unit.
1 min = 60 s
∴ Ratio of the first quantity (15 s) to the second quantity (60 s)$=\frac{\mathrm{First}\mathrm{quantity}}{\mathrm{Second}\mathrm{quantity}}$
$$\begin{gathered} =\frac{15}{60} \\ =1:4 \end{gathered}$$