Question

In a class $15$ benches are there. $4$ students are sitting on each bench. If number of students remains same and $12$ benches are there then on each bench how many students have to sit?

Answer 1

Total number of students $=$ Number of benches $\times$ Number of students sitting on each bench $=15\times 4=60$

Now, total number of students remain same but the total number of benches get reduced to $12$ from $15$.

So, Number of students on each bench $=\frac{\text{Total number of students}}{\text{Number of benches}}=\frac{60}{12}=5$