An empty pool of water is filled to capacity

Expert replies

sachin_yadav: Master | Next Rank: 500 Posts; Posts: 212; Joined: Mon Dec 06, 2010 12:52 amFollowed by: 1 member; Location: India; Thanked: 5 times

by sachin_yadav » Thu Feb 25, 2016 5:27 am

An empty pool of water is filled to capacity in 60 minutes by hose that adds 3 cubic feet of water per minute. The square of pool is 12 feet wide. How deep is the water in the pool. (There are 12 inches per foot)

A. 1 foot, 1 inches
B. 1 foot, 2 inches
C. 1 foot, 3 inches
D. 2 feet, 1 inches
E. 2 feet, 5 inches

OA is C

Never surrender

Like this post

Source: Beat The GMAT — Problem Solving | Thu Feb 25, 2016 5:27 am

MartyMurray: Legendary Member; Posts: 2135; Joined: Mon Feb 03, 2014 9:26 amFollowed by: 140 members; Location: https://martymurraycoaching.com/; Thanked: 955 times; GMAT Score:800

by MartyMurray » Thu Feb 25, 2016 5:34 am

60 minutes x 3 cubic feet/minute = 180 cubic feet

The pool is a 12 foot square. So the area of the surface of the pool is 144 feet. In other words, if the depth were 1 foot 0 inches, the pool would hold 144 cubic feet of water.

180/144 = 15/12 = 5/4 = 1 1/4

So the pool must be 1 1/4 feet deep. 1 foot = 12 inches 1/4 foot = 3 inches

The depth of the pool is 1 foot 3 inches.

The correct answer is C.

Marty Murray
Perfect Scoring Tutor With Over a Decade of Experience
MartyMurrayCoaching.com
Contact me at [email protected] for a free consultation.

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

559 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review