In a 200m race, Joy defeats Bishal by 5 seconds. If the speed of Joy is 18 kmph, then the speed of Bishal is-

Question: In a 200m race, Joy defeats Bishal by 5 seconds. If the speed of Joy is 18 kmph, then the speed of Bishal is-

Solution:
speed of Joy = 18 kmph = 18/3.6 = 5 mph
time taken by Joy = 200/5 = 40 sec

time taken by Bishal = 40 + 5
= 45 sec
speed of Bishal = 200/45 mph
= 4.44 mph
= 16 kmph