The task is to generate the correct answer for a given math problem.

Q: Problem: a train passes a platform in 32 seconds . the same train passes a man standing on the platform in 20 seconds . if the speed of the train is 54 km / hr , the length of the platform is

A: 180 meter
****
Q: Problem: a train running at the speed of 72 km / hr crosses a pole in 9 seconds . find the length of the train .

A: 180 meter
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Q: Problem: a bowl of fruit contains 14 apples and 21 oranges . how many oranges must be removed so that 70 % of the pieces of fruit in the bowl will be apples ?

A:
15
****