Question

there are between 24 and 40 students in a class the ratio of boys to girls is 4:7 how many students are there in class

Answer 1

`\fbox{\begin{minipage}{2em}33\end{minipage}}`

Explanation:

Given:

In a class the ratio of boys to girls is 4:7.

The total number of students is between 24 and 40.

Solve for:

The total number of students

Solution:

The total number of student could be divided in portions with ratio 4:7

=> It must be the divisor of (4 + 7) or 11.

Otherwise, it is a number between 24 and 40.

There is only one divisor of 11, lying between 24 and 40. That is 33

=> The total number of students: 33

Hope this helps!

:)