Frank picked 36 apples. Susan picked 3 times as many apples as Frank. If Susan gave out half of her apples, and Frank sold a third of his, how many in total do they have left?
Please answer the following question by reasoning step-by-step.
78
Susan picked 3 times as much as 36 which is 3 * 36 = 108 apples.

She gave out half which is 108 * (1 / 2) = 54 apples.

She now has 108 - 54 = 54 apples.

Frank sold a third of 36 which is 36 * (1 / 3) = 12 apples.

Frank now has 36 - 12 = 24 apples.

Altogether they now have 54 + 24 = 78 apples.

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Thus, the answer is 78