Question

1 All Year 9 students in a school must choose either Music or Drama but not both.

In 2013 the numbers taking the options of Music or Drama were in the ratio, 3:7.
The number of students choosing Music was 72.
a) What percentage of these students chose Music?
b) How many students were there in total in Year 9?

Answer 1

let it be 3x and 7x

a... 3x=72---for music

x=14

then dance=7*14=92

total....72+92=164.....(b)

a/////72/164*100=45%