It is currently 22 Feb 2018, 00:29

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Which has the largest value?

Author Message
TAGS:

### Hide Tags

Senior Manager
Joined: 02 Jan 2017
Posts: 315
Which has the largest value? [#permalink]

### Show Tags

16 Mar 2017, 23:43
00:00

Difficulty:

25% (medium)

Question Stats:

77% (01:51) correct 23% (01:28) wrong based on 48 sessions

### HideShow timer Statistics

Which has the largest value?

a) 1/5 +1/5+ 1/5

b) 3/5*2/5 – 4/5*1/5

c) (½)^3 + (1/2)^2 + (1/2)^1

d) ½ +1/3 +1/6+1/8

e) 1/9 * (1/3+9/27+9/12)

Source: www.f1gmat.com
[Reveal] Spoiler: OA
Manager
Joined: 14 Oct 2015
Posts: 238
GPA: 3.57
Re: Which has the largest value? [#permalink]

### Show Tags

17 Mar 2017, 01:39
vikasp99 wrote:
Which has the largest value?

a) 1/5 +1/5+ 1/5

b) 3/5*2/5 – 4/5*1/5

c) (½)^3 + (1/2)^2 + (1/2)^1

d) ½ +1/3 +1/6+1/8

e) 1/9 * (1/3+9/27+9/12)

Source: http://www.f1gmat.com

Fairly easy, sort of a spoiling question.

a - $$1/5 + 1/5 + 1/5 = 3/5$$

b - $$3/5*2/5 – 4/5*1/5$$ $$= 6/25 + 4/25 = 10/25 = 2/5$$ - smaller than a so definitely ignore this one.

c - $$1/2)^3 + (1/2)^2 + (1/2)^1 = 1/8 + 1/4 + 1/2 = (1+2+4)/8 = 7/8$$ - rule out a and b since this one is larger than both

d - $$1/2 +1/3 +1/6+1/8$$ = $$(12+8+4+3)/24 = 27/24 = 9/8$$ - larger than previous 3 so this is our largest so far.

e - $$1/9 * (1/3+9/27+9/12)$$ = $$1/9 * (2/3 + 3/4)$$ - whatever sum in bracket is, divided by 9 is definitely smaller than d so D is our answer.
_________________

Please hit Kudos if this post helped you inch closer to your GMAT goal.
Procrastination is the termite constantly trying to eat your GMAT tree from the inside.
There is one fix to every problem, working harder!

Re: Which has the largest value?   [#permalink] 17 Mar 2017, 01:39
Display posts from previous: Sort by