GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 13 Nov 2019, 22:45

### 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

# Which two of the following numbers, when added together, yield a sum

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 59020
Which two of the following numbers, when added together, yield a sum  [#permalink]

### Show Tags

15 Jul 2019, 23:20
00:00

Difficulty:

55% (hard)

Question Stats:

55% (01:59) correct 45% (01:53) wrong based on 37 sessions

### HideShow timer Statistics

Which two of the following numbers, when added together, yield a sum between 1 and 2?

I. $$\frac{7*2^3}{3^3-7}$$

II. $$\frac{\frac{3}{11}}{\frac{6}{11}}$$

III. $$\frac{-11^2-11^3}{30 * 44}$$

A. I only
B. II only
C. III only
D. I and III only
E. I, II and III

_________________
Senior Manager
Joined: 25 Jul 2018
Posts: 338
Re: Which two of the following numbers, when added together, yield a sum  [#permalink]

### Show Tags

15 Jul 2019, 23:44
The best way to solve this question is to check the answers.

if you simplify I and II, you will get I=14/5=2.8
II=1/2=0.5
you don't need to simplify the last one, because anyway it is negative number.
None of the all 3 number are between 1 and 2. So, Eliminate A,B and C.

Well, if you add I and II together, you will get 3.2 and it is not between 1 and 2. I think We can Eliminate E too.
Senior Manager
Joined: 20 Mar 2018
Posts: 400
Location: Ghana
Concentration: Finance, Real Estate
Which two of the following numbers, when added together, yield a sum  [#permalink]

### Show Tags

16 Jul 2019, 00:17
Constraint: 1< (sum of numbers)<2

(1) (7•2^3)/(3^3-7)= (7•8)/20 = 14/5 = 2 4/5 =(2.something)

(11) 3/11/6/11 = 1/2

(111) (-11^2-11^3)/(30•44)= -1(11)^2(1+11)/(30•44) = -1(11)^2(12)/(30•44)= -11/10=
-1 1/10 = (-1.something)

Only (1)+ (111) gives us sum between 1 and 2
Thus, (2.something)- (1.something ) =1.something

Posted from my mobile device
SVP
Joined: 03 Jun 2019
Posts: 1838
Location: India
Re: Which two of the following numbers, when added together, yield a sum  [#permalink]

### Show Tags

16 Jul 2019, 01:20
Bunuel wrote:
Which two of the following numbers, when added together, yield a sum between 1 and 2?

I. $$\frac{7*2^3}{3^3-7}$$

II. $$\frac{\frac{3}{11}}{\frac{6}{11}}$$

III. $$\frac{-11^2-11^3}{30 * 44}$$

A. I only
B. II only
C. III only
D. I and III only
E. I, II and III

Question: Which two of the following numbers, when added together, yield a sum between 1 and 2?

I. $$\frac{7*2^3}{3^3-7}$$
$$\frac{7*2^3}{3^3-7}=\frac{7*2^3}{20}=\frac{14}{5} = 2.8$$

II. $$\frac{\frac{3}{11}}{\frac{6}{11}}$$
$$\frac{\frac{3}{11}}{\frac{6}{11}}=\frac{3}{6}=.5$$

III. $$\frac{-11^2-11^3}{30 * 44}$$
$$\frac{-11^2-11^3}{30 * 44}=-\frac{11^2(1+11)}{30*44}= -1.1$$

Adding together I & III =2.8 - 1.1 = 1.7

IMO D
_________________
"Success is not final; failure is not fatal: It is the courage to continue that counts."

Please provide kudos if you like my post. Kudos encourage active discussions.

My GMAT Resources: -

Efficient Learning
All you need to know about GMAT quant

Tele: +91-11-40396815
Mobile : +91-9910661622
E-mail : kinshook.chaturvedi@gmail.com
Re: Which two of the following numbers, when added together, yield a sum   [#permalink] 16 Jul 2019, 01:20
Display posts from previous: Sort by