Word Problems, Work/Rate Problems

This topic has expert replies
Moderator
Posts: 2599
Joined: Sun Oct 29, 2017 2:08 pm
Followed by:2 members

Word Problems, Work/Rate Problems

by AAPL » Thu Feb 11, 2021 3:30 am

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Three pipes \(A, B,\) and \(C\) can fill tank in \(10, 15\) and \(25\) minutes respectively. All the three taps are used simultaneously to fill the tank. But, due to a leak at the bottom of the tank, only \(\dfrac{1}{3}\)rd of the tank was filled by the time it was supposed to be full. In how much time could the leak empty a full tank?

A. \(\dfrac{75}{31}\)

B. \(\dfrac{150}{31}\)

C. \(\dfrac{225}{31}\)

D. \(\dfrac{15}{2}\)

E. \(\dfrac{450}{31}\)

The OA is C

Source: E-GMAT
Source: — Problem Solving |