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

 It is currently 19 Jun 2019, 00:23 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.  1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?

Author Message
TAGS:

Hide Tags

SVP  P
Joined: 12 Dec 2016
Posts: 1527
Location: United States
GMAT 1: 700 Q49 V33 GPA: 3.64
1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

1 00:00

Difficulty:   25% (medium)

Question Stats: 73% (01:23) correct 27% (01:40) wrong based on 78 sessions

HideShow timer Statistics

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

Originally posted by chesstitans on 04 Jan 2018, 02:37.
Last edited by Bunuel on 04 Jan 2018, 02:41, edited 1 time in total.
Edited the question.
Math Expert V
Joined: 02 Sep 2009
Posts: 55682
Re: 1⁄2 + 1⁄3 + 1⁄4 + 1⁄5 + 1⁄6 =  [#permalink]

Show Tags

chesstitans wrote:
1⁄2 + 1⁄3 + 1⁄4 + 1⁄5 + 1⁄6 = ?

1⁄4
1 1⁄20
1 1⁄4
1 9⁄20
1 29⁄60

Please format questions properly. Thank you.

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = \frac{30+20+15+12+10}{60} = \frac{87}{60}=\frac{29}{20}=1 \frac{9}{20}$$
_________________
SVP  P
Joined: 12 Dec 2016
Posts: 1527
Location: United States
GMAT 1: 700 Q49 V33 GPA: 3.64
Re: 1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

Bunuel wrote:
chesstitans wrote:
1⁄2 + 1⁄3 + 1⁄4 + 1⁄5 + 1⁄6 = ?

1⁄4
1 1⁄20
1 1⁄4
1 9⁄20
1 29⁄60

Please format questions properly. Thank you.

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = \frac{30+20+15+12+10}{60} = \frac{87}{60}=\frac{29}{20}=1 \frac{9}{20}$$

pls help, I have 2 questions.
1/ How do I format the question?
2/ Is there a better way to calculate such math problems?
Math Expert V
Joined: 02 Sep 2009
Posts: 55682
Re: 1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

chesstitans wrote:
Bunuel wrote:
chesstitans wrote:
1⁄2 + 1⁄3 + 1⁄4 + 1⁄5 + 1⁄6 = ?

1⁄4
1 1⁄20
1 1⁄4
1 9⁄20
1 29⁄60

Please format questions properly. Thank you.

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = \frac{30+20+15+12+10}{60} = \frac{87}{60}=\frac{29}{20}=1 \frac{9}{20}$$

pls help, I have 2 questions.
1/ How do I format the question?
2/ Is there a better way to calculate such math problems?

1. Writing Mathematical Formulas on the Forum: https://gmatclub.com/forum/rules-for-po ... l#p1096628

2. Finding common denominator is easiest way. Some questions might have a shortcut solutions but this method will always give you the correct answer.
_________________
Math Expert V
Joined: 02 Aug 2009
Posts: 7755
1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

chesstitans wrote:
$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

Just to make the calculation easier.
remember $$\frac{1}{3}+\frac{1}{6}=\frac{1}{2}$$
$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = \frac{1}{2} + (\frac{1}{3} + \frac{1}{6}) + \frac{1}{5} + \frac{1}{4} = \frac{1}{2} + \frac{1}{2} + \frac{4+5}{5*4} = 1+ \frac{9}{20}$$
D
_________________
Manager  B
Joined: 23 Oct 2017
Posts: 62
Re: 1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

chesstitans wrote:
$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

-------------------

One possible way of calculation could be:
=(1/2 + 1/3) +1/4 +1/5 + 1/6 (selecting the first 2 as you would get a denominator of 6 which you can quickly combine with the last term, select those with denominators that dont have any common facors i.e. GCD = 1, that will help in quick calculation)
= 5/6 + 1/6 + 1/4 + 1/5
= 1 + (1/4 + 1/5)
= 1 + (9/20)
= 1 9/20
Senior SC Moderator V
Joined: 22 May 2016
Posts: 2899
1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

chesstitans wrote:
$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

Using the common denominator is quick; the numerators are not hard to calculate.

$$\frac{30}{60} + \frac{20}{60} + \frac{15}{60} + \frac{12}{60} + \frac{10}{60} =$$

$$\frac{87}{60} = \frac{29}{20} = 1\frac{9}{29}$$

_________________
SC Butler has resumed!
Get two SC questions to practice, whose links you can find by date, here.

Tell me, what is it you plan to do with your one wild and precious life? -- Mary Oliver
Board of Directors P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4504
Location: India
GPA: 3.5
Re: 1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  [#permalink]

Show Tags

chesstitans wrote:
$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6} = ?$$

A. $$\frac{11}{4}$$

B. $$1 \frac{1}{20}$$

C. $$1 \frac{1}{4}$$

D. $$1 \frac{9}{20}$$

E. $$1 \frac{29}{60}$$

$$\frac{1}{2} + \frac{1}{3} + \frac{1}{4} + \frac{1}{5} + \frac{1}{6}$$

= $$\frac{30+20+15+12+10}{60}$$

= $$\frac{87}{60}$$

= $$1 \frac{27}{60}$$

= $$1 \frac{9}{20}$$

_________________
Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only ) Re: 1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?   [#permalink] 04 Jan 2018, 09:39
Display posts from previous: Sort by

1/2 + 1/3 + 1/4 + 1/5 + 1/6 = ?  