Hey there!

Here is the GMAT practice question for this week. It is kindly provided by Veritas Prep.

Two hoses (A and B) are filling a pool. Working alone at their individual constant rates Hose A could fill the pool in 6 hours, and Hose B could do it in 4 hours. If the two hoses work together until half the pool is full, and then Hose B finishes the pool alone, what fraction of the pool will have been filled by Hose B?

A. 1/2

B. 3/5

C. 3/4

D. 4/5

E. 7/8

Share your solution or ask any questions. Experts and peers are here to help.

Best regards!

Ina