Question
Abi, Betty and Yen collected some marbles. Abi had twice as many marbles as Betty, and Betty had 15 more marbles than Yen. If they had a total of 165 marbles, how many less marbles did Betty have than Abi?
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Abi, Betty and Yen collected some marbles. Abi had twice as many marbles as Betty, and Betty had 15 more marbles than Yen. If they had a total of 165 marbles, how many less marbles did Betty have than Abi?