Question

The teacher to student ratio is 1:12. If

the total number of teachers and
students is 260, how many teachers
are there?
teachers

Answer 1

240 teachers

Explanation:

Let u be 1 unit.

1u+12u=260

13u=260

u=260÷13

=20

No. of teachers=12u=20×12

=240

Answer 2

Let teacher be x

• Student=12x

`\\ \sf\longmapsto x+12x=260`

`\\ \sf\longmapsto 13x=260`

`\\ \sf\longmapsto x=(260)/(13)`

`\\ \sf\longmapsto x=20`