The task is to generate the correct answer for a given math problem.
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Question: Problem: how many numbers between 400 and 1000 can be made with the digits 2 , 3,4 , 5,6 and 0 ?

Answer: 60


Question: Problem: how many multiples of 7 are there between 10 and 100 ( both are inclusive ) ?

Answer: 13


Question: Problem: in order to obtain an income of rs . 1000 from 50 % stock at rs . 500 , one must make an investment of

Answer:
rs . 10000