Question

The student teacher ratio in a school is 45:2.if there are 1410 students and teachers in the school,how many teachers must be there

Answer 1

total=1410

students=45x

teachers=2x

$2x + 45x = 1410 \\ 47x = 1410 \\ x = 3$

students=45x

=45×30

=1350

teachers=2x

=2×30

=60