instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: a cycle is bought for rs . 900 and sold for rs . 1170 , find the gain percent ?
answer:
30 %


question:
Problem: ? x 12 = 173 x 240
answer:
3460


question:
Problem: ann and bob drive separately to a meeting . ann ' s average driving speed is greater than bob ' s avergae driving speed by one - third of bob ' s average driving speed , and ann drives twice as many miles as bob . what is the ratio w of the number of hours ann spends driving to the meeting to the number of hours bob spends driving to the meeting ?
answer:

3 : 2