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Question 1 of 3
The number of buses travelling on route A to the number of buses travelling on route B is in the ratio 1:3.
The number of buses on route A was increased by 80%.
(a) By what percentage must the number of buses on route B be decreased so that the same number of buses run on both routes?
(b) If the number of buses on route A increased by 500% from the original amount instead, by what percentage must the number of buses on route B be increased so that there are 20% more buses on route B than on route A?
Notes to students:
- If the question above has parts, (e.g. (a) and (b)), given that the answer for part (a) is 10 and the answer for part (b) is 12, give your answer as:10,12