Page 21 - Maths 1
P. 21
ii) The percentages of pupils and their favourites should sum up
to 100%.
So to find the percentage for Table tennis, we need to add up
the other percentages and subtract from 100%; the
remaining is for table tennis;
48 + 12 + 24 + 8 = 92% (all 4 sports excluding table tennis)
pupils preferring table tennis = 100 - 92 = 8% [1]
b) The 50 pupils are represented by 100%.
The number of pupils preferring football = 48% of 50
24 pupil prefer football.
[2]