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Shashank Shah

· started a discussion

· 1 Months ago

It think Question is wrong (Question: 109992.0 )

Instead of STARTING point it should be FIRST time...Becoz for starting time, the LCM of their speeds should be taken

Question:
A and B walk around a circular path of 5 km in circumference starting together from the same point in the same direction. If their speeds are 4 km/h and 3km/h respectively, after how many hours will they be again at the starting point?
Options:
A) 3 hours
B) 4 hours
C) 5 hours
D) 6 hours
Solution:
Ans:(c) In 1 hour A gains 4 km -3 km = 1 km over B 

\(\therefore\) they will meet on starting point after 5 hours.

Knowledge Expert

· commented

· 1 Months ago

The question is correct, What's your concern?
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