Answer:
8/27
Step-by-step explanation:
The triplicate ratio of 2:3 is 2^3/3^3 = 8/27
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45 (price of them) divided by 5 (the amount of tickets) = £9
one ticket = £9
so 9 (the price of one ticket) x 7 (the number of tickets) is £63
the answer is 63.