in a 5km race, runner \"A\" runs at a constant 11 km/hr and runner \"B\" runs at

Question

in a 5km race, runner "A" runs at a constant 11 km/hr and runner "B" runs at a constant 15km/hr. how long does the faster runner have to wait at the end for the slower runner in a 5km race, runner "A" runs at a constant 11 km/hr and runner "B" runs at a constant 15km/hr. how long does the faster runner have to wait at the end for the slower runner in a 5km race, runner "A" runs at a constant 11 km/hr and runner "B" runs at a constant 15km/hr. how long does the faster runner have to wait at the end for the slower runner

Explanation / Answer

speed = distance / time

for runner A

11 = 5 / time

time = 0.4545 hr

for runner B

15 = 5 / time

time = 0.3333 hr

waiting time = 0.4545 - 0.3333

waiting time = 0.1212 hr

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