Question

The ratio of boys and girls in a school is 12 : 5. If there are 840 girls in the school, then the number of boys is

(a) 1190
(b) 2380
(c) 2856
(d) 2142

Answer 1

None of the given options are correct.

If the number of girls in the school is 840, let the number of boys be x.

It is given that the ratio of boys and girls is 12 : 5. Therefore, we get:


$$\begin{gathered} \therefore \frac{12}{5}=\frac{x}{840} \\ x=\frac{12}{5}\times 840=2016 \end{gathered}$$