instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a is half good a work man as b and together they finish a job in 14 days . in how many days working alone b finish the job ?
answer:
21

question:
Problem: a train running at the speed of 70 km / hr crosses a pole in 9 sec . what is the length of the train ?
answer:
175 m

question:
Problem: a lady builds 8 cm length , 15 cm width , and 5 cm height box using 10 cubic cm cubes . what is the minimum number of cubes required to build the box ?
answer:
60