A teacher is chosen at random. The probability that the teacher is female is 3/5. There are 36 male teachers. How many teachers in total work at the school?

Info given = probability that the teacher is female = 3/5 36 male Teachers

Workings: If 3/5 are female then 2/5 are male. 2/5 = 36 males 36 divided by 2 = 18 so get the one portion. to find out how many women: 18 x 3 (due to probability being 3/5)= 54 total teachers = males + females 54+36 = 90.

SS

Related Maths GCSE answers

All answers ▸

There are 40 pencils in a box. There are 15 pens in a packet. John gives one pencil and one pen to each person at a conference. He has no pencils or pens left. How many boxes of pencils and how many packets of pens did John buy?


Find the value of x: x^2-3x-3=1


What is the lowest common multiple and the highest common factor of 120 and 150?


Write (9^8)/((9^5)^2) in its simplest form