There is rain at a rate of 12 centimeters per hour all over New Jersey. Somewhere downtown in New Jersey a group of students are waiting for the rain to stop. If the rain filled a tank the with a base area of 250 square centimeters and a depth of 6 centimeters, how long did the students wait for the rain to stop?	Choose the correct choice from the following answers.
A) 8 hours	B) 4 hours 25 minutes	C) 3 hours 15 minutes	D) 6 hours	E) 2 hours
Answer is : E, 4 hours and 30 mins   The volume of the tank is irrelevant and only height matters since rain fell all over the city.   Thus, it takes only . 12 / 6 = 2 hours of rain to fill the tank.
<result>E</result>
There is rain at a rate of 12 centimeters per hour all over New Jersey. Somewhere downtown in New Jersey a group of students are waiting for the rain to stop. If the rain filled a tank the with a base area of 250 square centimeters and a depth of 6 centimeters, how long did the students wait for the rain to stop?