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

Q: Problem: a number x is 5 times another number y . the percentage that y is less than x is

A: 80 %
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Q: Problem: if | x - 9 | = 3 x , then x = ?

A: - 4.
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Q: Problem: the distance between 2 cities a and b is 1000 km . a train starts from a at 10 a . m . and travels towards b at 100 km / hr . another starts from b at 11 a . m . and travels towards a at 150 km / hr . at what time do they meet ?

A:
3 pm .
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