One of the teachers at a school is chosen at random. The probability that this teacher is female is 3/5 There are 36 male teachers at the school. Work out the total number of teachers at the school.

We are told that the probability that a randomly chosen teacher is female is 3/5, or 60%.

This means that the overall proportion of female teachers at this school is also 3/5, or 60%.

In turn, this means that the overall proportion of male teachers at this school is 1 - 3/5 = 2/5.

Knowing that the total number of male teachers at the school is 36, and that their overall proportion is 2/5, we can easily solve for the total number of teachers at the school.

Let x denote the total number of teachers at the school.

3/5 * x = 36

x = 36 * 5/3

x = 60.

Answered by Aleksandar G. Maths tutor

2537 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Complete the square and hence sketch the graph of f(x) = x^2 + 2x + 7


GCSE: I don't understand how to rationalise denominators


P=(3a+5)/(4-a) Make a the subject


An area of a garden needs to be tiled. It consists of a square area of 10m by 10m, with an outdoor pool in the middle of radius 3m. The tiles to be used are 50cm by 50cm, and cost 50p per tile. Find out how much it will cost to tile the area.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy