instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: 2,7 , 17,3 , 11,19 , 5,13 , __
answer:
23


question:
Problem: a and b can together finish a work in 40 days . they worked together for 10 days and then b left . after another 15 days , a finished the remaining work . in how many days a alone can finish the job ?
answer:
2


question:
Problem: if n is a positive integer , what is the remainder when ( 6 ^ ( 4 n + 3 ) ) ( 6 ^ n ) is divided by 10 ?
answer:

7