Question

Two friends are cycling at 50 km/hr and 40 km/hr from the opposite ends of a linear track such
that after reaching the opposite ends they return to their starting positions. If the length of the
track is 550 meter, after how much time will they meet for the second time?
1) 55 seconds
2) 60 seconds
3) 63 seconds
4) 66 seconds
5) None of these​

Answer 1

Answer:

sorry I don't have any idea of this question sorry

Answer 2

Answer:

66

Step-by-step explanation:

total distance travelled by both of them to meet for second time is 550*3= 1650 m

by using relative Speed concept

time = total distance / relative speed

= 1650/(50+40)*(5/18)

= 66 sec