There are 300 passengers on a plane, 7/20 of them are men, 30% are women, the rest are children. Work out the number of children.
300 x (7/20) = 300/20 x 7 = 15 x 7 = 105 = number of men on the plane.
300 x 0.3 = 90 (Or 300/10 x 3) = number of women on the plane.
105 + 90 = number of adults on the plane = 195.
300 - 195 = 105 = number of children on the plane.
HT
Related Maths GCSE answers
All answers ▸Work out the value of x and y in the parallelogram ABCD.
Expand and simplify (5a-2b)(3a-4b)
The normal price of a television is £1200. It is reduced to £970. Work out the percentage reduction. Give your answer to 1 decimal place.
Circle the number that is closest in value to (1.1)/(0.0204) [From selection of 5, 6, 50, 60] [Edit of 2018 Paper 1 Q4]