It is currently 11 Dec 2018, 19:02

### 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

# If Elier can bake c cakes in h hours, then at this rate how

Author Message
TAGS:
GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4749
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1654 [1] , given: 396

If Elier can bake c cakes in h hours, then at this rate how [#permalink]  31 May 2017, 07:19
1
KUDOS
Expert's post
00:00

Question Stats:

100% (00:30) correct 0% (00:00) wrong based on 9 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

GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4749
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 93

Kudos [?]: 1654 [0], given: 396

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]  02 Jul 2017, 14:54
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: 1232
Followers: 45

Kudos [?]: 1113 [0], given: 7

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]  04 Jul 2017, 15:27
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

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

Kudos [?]: 7 [0], given: 13

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]  26 Jul 2017, 00:34
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
Affiliations: Target Test Prep
Joined: 09 May 2016
Posts: 161
Location: United States
Followers: 4

Kudos [?]: 117 [0], given: 0

Re: If Elier can bake c cakes in h hours, then at this rate how [#permalink]  29 May 2018, 06:52
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

_________________

Jeffery Miller

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