In New Threeland there are three types of coins: the 2p; the 5p; and one other. The smallest number of coins needed to make 13p is three. The smallest number of coins needed to make 19p is three. What is the value of the third type of coin?
Select one option, then click Submit.
4p
6p
7p
9p
12p
Select an option, then submit.
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