The task is to generate the correct answer for a given math problem.
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Question: Problem: two trains of length 100 meters and 200 meters are 450 meters apart . they are moving towards each other on parallel tracks , at speeds of 90 km / h and 72 km / h . after how many seconds will the trains meet ?

Answer: 10


Question: Problem: what is the total number of integers between 10 and 50 that are divisible by 2 ?

Answer: 19


Question: Problem: how many numbers are divisible by both 2 and 3 up to 300 ?

Answer:
50