instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a train 800 m long can cross a pole in 10 sec and then find the speed of the train ?
answer:
28


question:
Problem: the owner of a furniture shop charges his customer 10 % more than the cost price . if a customer paid rs . 8800 for a computer table , then what was the cost price of the computer table ?
answer:
rs . 8000


question:
Problem: ages of two persons differ by 20 years . if 6 year ago , the elder one be 3 times as old the younger one , find their present age
answer:

16,36