Question

4 schools sent students to a language course one of the schools sent both french and german the ratio is 1:3 the school sent 21 german students the other 3 schools sent the sanr number of students, work out the total number of students sent to the languaged course

Answer 1

Number of schools that sent students to a language course=4

Ratio of number of French students to the number of German students=1:3

Total number of German student=21

Then, let the number of students who took French be x.

This can be written as:-

$= 1: 3 : : x : 21$

$= x = \frac{21 \times 1}{3}$

$= x = \frac{21}{3}$

$= \: x \bold{ \: \: = \: 7}$

Thus, the number of students who took French=7

Which means :-

The total number of students sent to the language course:-

$= 21 + 7$

$= \bold{28}$

Thus, the total number of students sent=28

Therefore, the total number of students sent to the language course =28