# Time and Distance

Discuss Time and Distance within the Quant forums, part of the CAT, XAT, MAT, CET, JMET and other Indian MBA Entrance Exams category; Originally Posted by tarunceo Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 ...

 Re: Time and Distance
Jiten Mazee

Student of Bachelor of Engineering at HAKIM ABDUL HAMID UNANI MEDICAL COLLEGE

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Re: Time and Distance - January 11th, 2016

Quote:
 Originally Posted by tarunceo Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? A. 9 B. 10 C. 12 D. 20
The right answer is B i.e, 10
Explanation :

Due to stoppages, it covers 9 km less.
Time taken to cover 9 km = {9/54 * 60}min = 10 min

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 Re: Time and Distance
Jiten Mazee

Student of Bachelor of Engineering at HAKIM ABDUL HAMID UNANI MEDICAL COLLEGE

Status: Offline
Posts: 2,649
Join Date: Oct 2015
Re: Time and Distance - January 11th, 2016

Quote:
 Originally Posted by tarunceo A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it? A. 8 hours B. 10 hours C. 12 hours D. 24 hours
Option C is the right answer.

Explanation :
A's 1 hour's work = 1/4;
(B + C)'s 1 hour's work = 1/3
A + C)'s 1 hour's work = 1/2
A + B + C)'s 1 hour's work -= [1/4 + 1/3] = 7/12
B's 1 hour's work = [7/12 - 1/2] = 1/12

So B alone will take 12 hours to do the work.
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 Re: Time and Distance
Jiten Mazee

Student of Bachelor of Engineering at HAKIM ABDUL HAMID UNANI MEDICAL COLLEGE

Status: Offline
Posts: 2,649
Join Date: Oct 2015
Re: Time and Distance - January 11th, 2016

Quote:
 Originally Posted by tarunceo Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour? A. 9 B. 10 C. 12 D. 20
I think i have already given answer to this question and it is repeated again.
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 Re: Time and Distance
Jiten Mazee

Student of Bachelor of Engineering at HAKIM ABDUL HAMID UNANI MEDICAL COLLEGE

Status: Offline
Posts: 2,649
Join Date: Oct 2015
Re: Time and Distance - January 11th, 2016

Quote:
 Originally Posted by tarunceo If a person walks at 14 km/hr instead of 10 km/hr, he would have walked 20 km more. The actual distance travelled by him is: A. 50 km B. 56 km C. 70 km D. 80 km
Answer: Option A i.e, 50 km

Explanation:

Let the actual distance traveled be x km.
Then, x/10 = x+20/ 14
14x = 10x + 200
4x = 200
x = 50km.
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