The task is to generate the correct answer for a given math problem.

Problem: a is twice as good a workman as b and they took 6 days together to do the work b alone can do it in .
18 days

Problem: a train covers a distance of 12 km in 10 minutes . if it takes 8 seconds to pass a telegraph post , then the length of the train is
160 m

Problem: how many integers between 50 and 100 can be evenly divided by neither 3 nor 5 ?
26