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

Q: Problem: income and expenditure of a person are in the ratio 7 : 6 . if the income of the person is rs . 14000 , then find his savings ?

A: 2000
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Q: Problem: a car traveled 560 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in the city . if the car traveled 6 fewer miles per gallon in the city than on the highway , how many miles per gallon did the car travel in the city ?

A: 9
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Q: Problem: the length of the bridge , which a train 160 m long and traveling at 45 km / hr can cross in 30 sec is ?

A:
215
****