GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

 It is currently 29 Feb 2020, 01:22

### 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

# A, B and C can complete one full round of a circular track in 10 minut

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 61549
A, B and C can complete one full round of a circular track in 10 minut  [#permalink]

### Show Tags

06 Jan 2020, 06:57
00:00

Difficulty:

75% (hard)

Question Stats:

43% (03:33) correct 57% (02:36) wrong based on 14 sessions

### HideShow timer Statistics

A, B and C can complete one full round of a circular track in 10 minutes, 30 minutes and 50 minutes respectively. If A runs clockwise and B and C run anticlockwise, find the time after which they will meet for the first time.

A. 20 mins
B. 30 mins
C. 60 mins
D. 75 mins
E. 150 mins

_________________
VP
Joined: 20 Jul 2017
Posts: 1339
Location: India
Concentration: Entrepreneurship, Marketing
WE: Education (Education)
A, B and C can complete one full round of a circular track in 10 minut  [#permalink]

### Show Tags

10 Jan 2020, 01:21
1
Bunuel wrote:
A, B and C can complete one full round of a circular track in 10 minutes, 30 minutes and 50 minutes respectively. If A runs clockwise and B and C run anticlockwise, find the time after which they will meet for the first time.

A. 20 mins
B. 30 mins
C. 60 mins
D. 75 mins
E. 150 mins

Substitute the options and check
Number of rounds made by A, B & C after 't' mins = t/10, t/30 & t/50 respectively

No. of rounds -------- A ----- B ----- C
Time (mins)
-- 20 ----------------- 2 ---- 2/3 ---- 2/5 --> No
-- 30 ----------------- 3 ----- 1 ----- 3/5 --> No
-- 60 ----------------- 6 ----- 2 ----- 6/5 --> No
-- 75 ----------------- 7.5 --- 2.5 --- 1.5 --> Yes [Everyone met at mid way of track for the first time]
-- 150 ---------------- 15 ---- 5 ---- 3 --> No [Met for the second time]

IMO Option D
A, B and C can complete one full round of a circular track in 10 minut   [#permalink] 10 Jan 2020, 01:21
Display posts from previous: Sort by