Q337
Two cyclists start on a circular track from a given point but in opposite directions with speeds of 7 m/sec and 8 m/sec respectively. If the circumference of the circle is 300 metres, after what time will they meet at the starting point ?
A.
20 sec
B.
100 sec
C.
200 sec
D.
300 sec
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Time taken by the two cyclists to cover one round of the track is sec and sec respectively.∴ Required time :
= L.C.M. of and
= 300 sec