Question

In a 100m race, Kamal defeats Bimal by 5 seconds. If the speed of Kamal is 18 kmph, then the speed of Bimal is:
A.15.4 kmph
B.14.5 kmph
C.14.4 kmph
D.14 kmph

Answer 1

Answer:

Step-by-step explanation:

Speed of kamal = 18 kmph=

=18000 m / 3600 sec. = 5 mps (meter per second)

Time taken by kamal=

total distance/speed = 100/5 = 20 sec.

But kamal defeats Bimal by 5 sec.

Time taken by Bimal = 20+5 sec= 25 sec.

Speed of Bimal = distance/time taken =100/25 = 4 mps.

Speed of Bimal = 4mps x 3600 sec/ 1000

= 14.4 kmph

( to convert mps to kmps multiply mps by 3600 seconds and divide by 1000 for getting speed for kmph).