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 2512:30 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 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.
29 Jan 2021, 06:15
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
54% (02:33) correct
46%
(02:54)
wrong
based on 140
sessions
History
Date
Time
Result
Not Attempted Yet
A man sets out on cycle from Bina to Itarsi and at the same time another man starts from Itarsi to Bina on cycle. After passing each other they complete their journeys in 16 and 25 hours respectively. At what rate does the second man cycle if the first cycles at 15 km/h?
(A) 15 km/h
(B) 12 km/h
(C) 10 km/h
(D) 8 km/h
(E) 6 km/h
(A) 15 km/h
(B) 12 km/h
(C) 10 km/h
(D) 8 km/h
(E) 6 km/h
29 Jan 2021, 09:31
Kudos
Bookmarks
Concept:
\(A\)--------\({t_1}\)----------\(X\)---------\({t_2}\)---------\(B\)
A and B start walking towards each other. After meeting A covers his distance in \(t_1\) time and B covers his distance in \(t_2\) time. The ratio of their speed is;
\(\frac{S_A}{S_B}=\sqrt{\frac{t_2}{t_1}}\)
Based on this concept,
\(\frac{S_A}{S_B}=\sqrt{\frac{16}{25}} = \frac{4}{5}\)
\(S_B=5--->15\)
\(S_B--->3\)
\(S_A=4*3=12\) km/hr
Ans B
\(A\)--------\({t_1}\)----------\(X\)---------\({t_2}\)---------\(B\)
A and B start walking towards each other. After meeting A covers his distance in \(t_1\) time and B covers his distance in \(t_2\) time. The ratio of their speed is;
\(\frac{S_A}{S_B}=\sqrt{\frac{t_2}{t_1}}\)
Based on this concept,
\(\frac{S_A}{S_B}=\sqrt{\frac{16}{25}} = \frac{4}{5}\)
\(S_B=5--->15\)
\(S_B--->3\)
\(S_A=4*3=12\) km/hr
Ans B
General Discussion
26 Mar 2024, 11:20
Kudos
Bookmarks
meanup
If anyone is curious how this formula is derived.
Let's assume that speed of A is a, Speed of B is b. They meet each other after time 't' has been elapsed after starting.
Total distance is = a*t + b*t
individually A takes t+16 hours and B takes t+25 hours to complete the total disrance.
So the total distance (in terms of speed of A) is = a*(t+16) and that by B is = b*(t+25)
Now we have two equations
a*t + b*t = a*(t+16) = b*(t+25)
solving this we get 16*a^2= 25*b^2. i.e. \(\frac{a}{b}=\sqrt{\frac{{t_2}}{{t_1}}}\)
from here we can get the answer b=12
Ans B
