It is currently 24 Sep 2018, 07:04

### 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

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# At the end of April, the price of fuel was 40% greater than

Author Message
TAGS:
GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4473
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 80

Kudos [?]: 1478 [0], given: 346

At the end of April, the price of fuel was 40% greater than [#permalink]  10 Jun 2018, 04:38
Expert's post
00:00

Question Stats:

100% (00:46) correct 0% (00:00) wrong based on 6 sessions
At the end of April, the price of fuel was 40% greater than the price at the beginning of the month. At the end of May, the price of fuel was 30% greater than the price at the end of April.

 Quantity A Quantity B The price increase in April The price increase in May

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4473
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 80

Kudos [?]: 1478 [0], given: 346

Re: At the end of April, the price of fuel was 40% greater than [#permalink]  11 Jul 2018, 13:39
Expert's post
Explanation

Call the original price x. At the end of April, the total price was 1.4x. The price increase in April was 1.4x – 1x = 0.4x.

In May, the price increased an additional 30% over April’s final price of 1.4x. Thus, the price at the end of May was (1.3)(1.4)x, or 1.82x. The price increase in May was 1.82x – 1.4x = 0.42x.

Since x is positive, 0.42x (42% of x) is greater than 0.4x (40% of x). Quantity B is greater.

Alternatively, use smart numbers. If the original price was $100, April’s increase would result in a price of$140 and May’s increase would be (1.3)(140) = $182. Thus, April’s increase was$40 and May’s increase was \$42. May’s increase will be greater no matter what number is used as the starting price (it is reasonable in GRE problems to assume that a price must be a positive number).
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test

Re: At the end of April, the price of fuel was 40% greater than   [#permalink] 11 Jul 2018, 13:39
Display posts from previous: Sort by