You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

A painter needed to paint 12 rooms in a building . Each room takes 3 hours to paint . If he already painted 4 rooms , how much longer will he take to paint the rest ?
24

The number of gears a machine can make varies directly by how long it operates . If it can make 2088 gears in 8 hours , How many gears can it make in 9 hours ?
2349

At a restaurant each adult meal costs $ 5 and kids eat free . If a group of 15 people came in and 8 were kids , how much would it cost for the group to eat ?

35