instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: how many multiples of 7 are there between 10 and 100 ( both are inclusive ) ?
answer:
13


question:
Problem: a lent rs . 5000 to b for 2 years and rs . 3000 to c for 4 years on simple interest at the same rate of interest and received rs . 1540 in all from both of them as interest . the rate of interest per annum is ?
answer:
7 %


question:
Problem: when sold at a 70 % discount , a sweater nets the merchant a 40 % profit on the wholesale cost at which he initially purchased the item . by what % is the sweater marked up from wholesale at its normal retail price ?
answer:

78.58