 It is currently 25 Mar 2019, 07:54 ### 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

#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here. # If Elier can bake c cakes in h hours, then at this rate how  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS: GRE Prep Club Legend  Joined: 07 Jun 2014
Posts: 4857
GRE 1: Q167 V156 WE: Business Development (Energy and Utilities)
Followers: 105

Kudos [?]: 1783  , given: 397

If Elier can bake c cakes in h hours, then at this rate how [#permalink]
1
KUDOS
Expert's post 00:00

Question Stats: 76% (00:33) correct 23% (00:33) wrong based on 17 sessions
If Elier can bake c cakes in h hours, then at this rate how many hours will it take him to bake 777 cakes?

A. $$777ch$$

B. $$\frac{777h}{c}$$

C. $$\frac{h}{777c}$$

D. $$\frac{777c}{h}$$

E. $$\frac{c}{777h}$$

Drill 2
Question: 12
Page: 339
[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

GRE Prep Club Legend  Joined: 07 Jun 2014
Posts: 4857
GRE 1: Q167 V156 WE: Business Development (Energy and Utilities)
Followers: 105

Kudos [?]: 1783 , given: 397

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]
Expert's post
Explanation

Plug in your own numbers for c and h.

Let’s say Elier can bake 14 cakes in 2 hours; this makes c = 14 and h = 2. That means he can bake 7 cakes per hour. At this rate, it will take him 111 hours to bake 777 cakes. Circle 111 as your target number. When you plug in your values, choices (A) and (D) are way too big. Choices (C) and (E) are way too small. Using your calculator, you can determine that choice (B) matches.
_________________

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

Try our free Online GRE Test

GRE Instructor Joined: 10 Apr 2015
Posts: 1546
Followers: 56

Kudos [?]: 1468 , given: 8

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]
Expert's post
sandy wrote:
If Elier can bake c cakes in h hours, then at this rate how many hours will it take him to bake 777 cakes?

A. $$777ch$$

B. $$\frac{777h}{c}$$

C. $$\frac{h}{777c}$$

D. $$\frac{777c}{h}$$

E. $$\frac{c}{777h}$$

Drill 2
Question: 12
Page: 339

Elier can bake c cakes in h hours
So, Elier can bake ONE cake in h/c hours
So, Elier can bake TWO cakes in 2h/c hours (twice the time for ONE cake)
So, Elier can bake THREE cakes in 3h/c hours (three times the time for ONE cake)
.
.
.
So, Elier can bake 777 cakes in 777h/c hours

[Reveal] Spoiler:
B

RELATED VIDEO

_________________

Brent Hanneson – Creator of greenlighttestprep.com Sign up for our free GRE Question of the Day emails

Intern Joined: 17 Jul 2017
Posts: 15
Followers: 0

Kudos [?]: 7 , given: 13

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]
The other method I used is: work = rate * time
Picking random numbers:
100 cakes --> 4 hours
1 cake --> 4 hours/ 100 cakes (we can see its h/c)
so 777 cakes --> 777 *h/c
Would the above method be right to approach this kind of question?
Target Test Prep Representative Status: Head GRE Instructor
Affiliations: Target Test Prep
Joined: 09 May 2016
Posts: 161
Location: United States
Followers: 4

Kudos [?]: 125 , given: 0

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]
Expert's post
sandy wrote:
If Elier can bake c cakes in h hours, then at this rate how many hours will it take him to bake 777 cakes?

A. $$777ch$$

B. $$\frac{777h}{c}$$

C. $$\frac{h}{777c}$$

D. $$\frac{777c}{h}$$

E. $$\frac{c}{777h}$$

Elier’s rate is c/h, so it will take him 777/(c/h) = 777h/c hours to bake 777 cakes.

Alternate Solution:

We can set up a proportion to solve this problem, letting x = the number of hours to bake 777 cakes:

c/h = 777/x

cx = 777h

x = 777h/c

_________________

GRE Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions Re: If Elier can bake c cakes in h hours, then at this rate how   [#permalink] 29 May 2018, 06:52
Display posts from previous: Sort by

# If Elier can bake c cakes in h hours, then at this rate how  Question banks Downloads My Bookmarks Reviews Important topics Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.