Three persons A, B, and C run along a circular path of length 12 km. They start
their race from the same point and at the same time with a speed of 4 km/hr,
3
3 km/hr and km/hr respectively. After what time will they meet again?
Answers
Answered by
0
Time taken by A=
3
12
hours =4 hours.
Time taken by B=
7
12
hours
Time taken by C=
13
12
hours
∴A,B,C will meet again after an interval.
= L.C.M. of (
1
4
,
7
12
and
13
12
) hours
=
H.C.F. of (7,13)
L.C.M. of (4,12,12)
=
1
12
hours
=12 hrs
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