There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.

72

Answered by Charlotte A. Maths tutor

3579 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

simplify 4p^3 x 3p^4


How to solve simultaneous equations?


Solve 9x - 3 = 4x + 17


Lily is buying theatre tickets. 4 adult tickets at £15 each 2 child tickets at £10 each A 10% booking fee is added to the ticket price. 3% is then added for paying by credit card. Work out the total ticket price if Lily is paying by card?


We're here to help

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