GRE Quantitative Reasoning › How to divide complex fractions
Which of the following answer choices is a value for in the following equation?
A cistern containing gallons of water has sprung two leaks. One leaks at a rate of
of a gallon every half hour. The second one leaks at a rate of
a gallon every fifth of an hour. In how many hours will the cistern be empty (presuming that the leaks will empty it eventually)?