instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: find the value o f 72519 x 9999 = m ?
answer:
m = 725117481


question:
Problem: a shopkeeper loses 15 % , if an article is sold for rs . 102 . what should be the selling price of the article to gain 20 % ?
answer:
rs . 144


question:
Problem: a and b walk around a circular track . they start at 8 a . m from the same point in the opposite directions . a and b walk at a speed of 2 rounds per hour and 3 rounds per hour respectively . how many times shall they cross each other before 9 a . m
answer:

5