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Question
primary 6 | Maths
| Ratio
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Mr Koh bought some entrance tickets to a Museum. An adult ticket costs $12 and a child ticket costs $4 less. The ratio of the total cost of the adult tickets to the total cost of the child tickets was 2:5.
(a) What was the least number of adult tickets Mr Koh bought?
(b) How much did he pay for all the tickets?
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