Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2301:30 AM EDT
-02:30 AM EDT
Struggling with GMAT Verbal as a non-native speaker? Harsh improved his score from 595 to 695 in just 45 days—and scored a 99 %ile in Verbal (V88)! Learn how smart strategy, clarity, and guided prep helped him gain 100 points.
Apr 2212:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2308:00 PM PDT
-09:00 PM PDT
Video explanations + diagnosis of 10 weakest areas + 150+ short videos + study plan!
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
21 Sep 2009, 12:18
Kudos
Bookmarks
N
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
50% (01:15) correct
50%
(02:16)
wrong
based on 2
sessions
History
Date
Time
Result
Not Attempted Yet
Q.
A naughty bird is sitting on top of a car.It sees another car approaching it at a distance of 12 kms.The speed of 2 cars is 60 kmph each.The bird starts flying from 1st car and moves towards 2nd car, reaches the 2nd car and comes back to 1st car and so on. If the speed at which bird flies is 120 kmph then answer the following questions.Assume the 2 cars have a crash.
1) The total distance travelled by the bird before the crash is
a. 6km
b. 12km
c. 18km
2)The total distance travelled by the bird before it reaches the second car for the 2nd time
a. 10.55 km
b. 11.55km
c. 12.33 km
A naughty bird is sitting on top of a car.It sees another car approaching it at a distance of 12 kms.The speed of 2 cars is 60 kmph each.The bird starts flying from 1st car and moves towards 2nd car, reaches the 2nd car and comes back to 1st car and so on. If the speed at which bird flies is 120 kmph then answer the following questions.Assume the 2 cars have a crash.
1) The total distance travelled by the bird before the crash is
a. 6km
b. 12km
c. 18km
2)The total distance travelled by the bird before it reaches the second car for the 2nd time
a. 10.55 km
b. 11.55km
c. 12.33 km
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
22 Sep 2009, 13:59
Kudos
Bookmarks
virtualanimosity
1) There is a very quick solution.
Cars A and B are 12 km farther between each other. They get this distance in 6 minutes. (60minutes*12km/(60kmph+60kmph)=6 minutes). It means after 6 minutes they will crash. Bird is flying at 120 kmph for this 6 minutes. So the bird flyes 120*6/60=12 km. B.
2)This is a scheduling problem.
When bird flyes there is 12 km from bird to Car B. Bird flyes at 120 kmph and car B is approaching at 60 kmph. So they are approaching each other at 180 kmph. But car A and B are approaching each other at only 120 kmph. So bird reach Car B in 12*60/180=4 minutes. In 4 minutes distance between Car A and Car B becomes 4 km (12-120*4/60=4). In 4 minutes bird flyes 8 km's and Car B approaches 4 km. After that the same logic works. Bird and Car A approaches each other at 180 kmph total. 4 km's are covered in 1 minutes 20 seconds. In that time bird covers 2,66 kms and the distance between car A and car B becomes 1,33 km's. In third round bird flyes 2,66/3 km's. In fourth round bird flyes 2,66/(3*3) km's. So all sum to 8 + 2,66 + 2,66/3 + 2,66/9 = 11,8 km's. I think the choice is B.
24 Sep 2009, 03:58
Kudos
Bookmarks
That is the right answer...thanks for the explanation
maliyeci
