The task is to generate the correct answer for a given math problem.
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Question: Problem: how many multiples of 7 are there between 10 and 100 ( both are inclusive ) ?

Answer: 13


Question: Problem: how many seconds will a train 120 meters long take to cross a bridge 150 meters long if the speed of the train is 36 kmph ?

Answer: 27 sec


Question: Problem: how many prime numbers are between 29 / 3 and 87 / 6 ?

Answer:
2