There is rain all over the city at a rate of 7 centimeters per hour. If a person is waiting in his house for the rain to stop how long did he wait to go out. The rain water filled a bucket of 28 centimeters depth and 200 square meters area?	Choose the correct choice from the following choices.
A) 5 hours 14 minutes B) 6 hours C) 4 hours D) 8 hours E) 12 hours
Answer is : C, 4 hours   The volume of the bucket is irrelevant and only height matters since rain fell all over the city.   Thus, it takes only 28 / 7= 
<gadget id="calculator">28 / 7</gadget>
<output>4</output>
4 hours of rain to fill the bucket
<result>C</result>
There is rain all over the city at a rate of 7 centimeters per hour. If a person is waiting in his house for the rain to stop how long did he wait to go out. The rain water filled a bucket of 28 centimeters depth and 200 square meters area?