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

 It is currently 26 May 2019, 10:20

### 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

# Zen and Noah decided to read a novel. When Noah started reading the no

Author Message
TAGS:

### Hide Tags

Intern
Joined: 16 Sep 2018
Posts: 3

### Show Tags

Updated on: 17 Sep 2018, 20:13
4
00:00

Difficulty:

55% (hard)

Question Stats:

58% (01:53) correct 42% (01:28) wrong based on 42 sessions

### HideShow timer Statistics

Zen and Noah decided to read a novel. When Noah started reading the novel, Zen had finished 60 pages. After 30 minutes, Noah overtakes Zen and both continue to read at their own speeds. How many pages will Noah be ahead of Zen, 50 minutes after Noah and Zen reading the same page?

(A) 40
(B) 60
(C) 80
(D) 100
(E) Can't be determined

Originally posted by Anush081297 on 17 Sep 2018, 12:11.
Last edited by Bunuel on 17 Sep 2018, 20:13, edited 1 time in total.
Renamed the topic and edited the question.
Intern
Joined: 13 Jun 2017
Posts: 18

### Show Tags

17 Sep 2018, 12:49
2
Let the speed of Zen be Z and the speed of Noah be N.

According to the given data,

Number of pages read by Zen in 30 mins = 30Z

So, N = (60+30Z)/30 = 2+Z

Number of pages read by each on 50 mins:
Zen = 50Z
Noah = 50(2+Z) = 100 + 50Z

Therefore, Noah will be ahead of Zen by 100 + 50Z - 50Z = 100 Pages.

Posted from my mobile device
Intern
Joined: 26 Aug 2018
Posts: 7

### Show Tags

17 Sep 2018, 13:03
2
1
Zen takes 30 minutes to read X
Noah takes 30 minutes to read X+60

This means Noah reads 60 pages more than Zen in 30 minutes.

So in 50 minutes:

30 minutes = 60 additional pages
50 minutes = Y additional pages

Y = 60*50/30 = 100

Re: Zen and Noah decided to read a novel. When Noah started reading the no   [#permalink] 17 Sep 2018, 13:03
Display posts from previous: Sort by