instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a certain debt will be paid in 65 installments from january 1 to december 31 of a certain year . each of the first 20 payments is to be $ 410 ; each of the remaining payments is to be $ 65 more than each of the first 20 payments . what is the average ( arithmetic mean ) payment that will be made on the debt for the year ?
answer:
455


question:
Problem: danny and steve are running towards each other , each one from his own house . danny can reach steve ' s house in 25 minutes of running , which is half the time it takes steve to reach danny ' s house . if the two started to run at the same time , how much time longer will it take steve to reach the halfway point between their houses than danny to reach the halfway point between their houses ?
answer:
12.5 minutes .


question:
Problem: how many integers from 101 to 200 , inclusive , are divisible by 3 but not divisible by 7 ?
answer:

28