Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
|
|
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Dec 1310:00 AM EST
-12:00 PM EST
Have you ever wondered how to score a PERFECT 805 on the GMAT? Meet Julia, a banking professional who used the Target Test Prep course to achieve this incredible feat. Julia's story is nothing short of an inspiration.
Dec 1410:00 AM EST
-12:00 PM EST
Think a 100% GMAT Verbal score is out of your reach? Target Test Prep will make you think again! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Dec 1411:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.- Dec 15
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Dec 1608:00 AM PST
-11:59 PM PST
GMAT Club 12 Days of Christmas is a 4th Annual GMAT Club Winter Competition based on solving questions. This is the Winter GMAT competition on GMAT Club with an amazing opportunity to win over $40,000 worth of prizes!
30 Mar 2022, 04:15
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
79% (01:46) correct
21%
(03:01)
wrong
based on 14
sessions
History
Date
Time
Result
Not Attempted Yet
If the grocery store is 10 miles west of the mall and 8 miles south of the office park, what is the approximate distance between the mall and the office park ?
(A) 6
(B) 7
(C) 9
(D) 11
(E) 13
(A) 6
(B) 7
(C) 9
(D) 11
(E) 13
06 Apr 2022, 08:37
Kudos
Bookmarks
Answer option A is a subtle trap for people who do not visualise the diagram and fall for the values they have seen on other questions related to right angled triangles. Agreed that 6, 8 and 10 is a Pythagorean triplet; that does not mean that you choose 6 because you saw a 8 and a 10.
In a Geometry question on the GMAT, it is important to always draw the diagram on paper instead of trying to visualise it mentally.Let us do exactly that now.
6th Apr 2022 - Post 4.png [ 20.8 KiB | Viewed 521 times ]
From the figure, its clear that the figure formed is a right angled triangle with legs of 8 units and 10 units.
Applying the Pythagoras theorem, length of the hypotenuse = √\(( 8^2+10^2)\) = \(√(64+100) \)= \(√164\)
From your knowledge of perfect squares, you will recognise that the square root of 169 is 13. Since 169 is the closest perfect square to 164, the nearest approximate square root of 164 is 13.
The hypotenuse in the diagram represents the distance between the mall and the office park. Therefore, the approximate distance between the mall and the office park is 13 miles.
The correct answer option is E.
In a Geometry question on the GMAT, it is important to always draw the diagram on paper instead of trying to visualise it mentally.Let us do exactly that now.
Attachment:
6th Apr 2022 - Post 4.png [ 20.8 KiB | Viewed 521 times ]
From the figure, its clear that the figure formed is a right angled triangle with legs of 8 units and 10 units.
Applying the Pythagoras theorem, length of the hypotenuse = √\(( 8^2+10^2)\) = \(√(64+100) \)= \(√164\)
From your knowledge of perfect squares, you will recognise that the square root of 169 is 13. Since 169 is the closest perfect square to 164, the nearest approximate square root of 164 is 13.
The hypotenuse in the diagram represents the distance between the mall and the office park. Therefore, the approximate distance between the mall and the office park is 13 miles.
The correct answer option is E.
Moderator:
