Latest IBPS Aptitude Question SOLUTION: A man covers a certain distance between his house and office. If his average speed is 20 km/hr, he is late by 10 min and if his average speed is 50 km/hr, he reaches 20 min early.

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(#M40154009) IBPS Numerical Ability question quant Keep an EYE

A man covers a certain distance between his house and office. If his average speed is 20 km/hr, he is late by 10 min and if his average speed is 50 km/hr, he reaches 20 min early. Find the distance between his house and office?
A. 50 km
B. 50/3 km
C. 55 km
D. 56/7 km

Asked In IBPS Sarabeshwar (8 years ago)

Unsolved Read Solution (3)

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Read Solution (3) :

picky  (8 years ago)

=(20*50/30)*(30/60)
=50/3

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abhin  (8 years ago)

shor cut:
take lcm of 50 and 20 ...................100
10 min late ........20 min early................ total 30 min
100km.................3hr=180min(100/50=2,100/20=5.................difference 5-2=3hr)
30min
as 180/6=30
hence 100/6=50/3 (ans)

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selva  (4 years ago)

ANS

=(Products of speed/difference in speed) * Difference in Time

= ((20*50)/30)*(30/60)

=50/3

So, Ans is B

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