instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?
answer:
e ) 1


question:
Problem: x varies inversely as square of y . given that y = 3 for x = 1 . the value of x for y = 9 will be equal to :
answer:
1 / 9


question:
Problem: how many integers between 1 and 10 ^ 16 are such that the sum of their digits is 2 ?
answer:

136