3 typists P, Q and R type some pages. The first two typists P and Q, who are typing constantly, can do a work as long as the third typist R does alone. If the same work can be done by the second typist alone, in less than 5 hours before the first typist and in 4 hours more in comparison with the third typist, how long will Q and R take to complete this work together?

Options

A. 3.75
B. 8.75
C. 4.75
D. 5.75

Answer

A