The odometer of a car reads 3000 km at the start of a trip and 3400 km at the end of the trip. If the trip took 8 hours, calculate the average speed of the car in km $h^{- 1}$ .

20 k m h^{- 1}

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50 k m h^{- 1}

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75 k m h^{- 1}

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150 k m h^{- 1}

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Solution

The correct option is B $50 k m h^{- 1}$
Total distance covered by car
= (3400 - 3000)km = 400 km
Total time taken = 8 hours
Average speed $= \frac{T o t a l d i s t a n c e}{T o t a l t i m e} = \frac{4000}{8}$
= 50 km/hour.

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The odometer of a car reads 3000 km at the start of a trip and 3400 km at the end of the trip. If the trip took 8 hours, calculate the average speed of the car in km h−1.

The correct option is B 50 km h−1Total distance covered by car = (3400 - 3000)km = 400 km Total time taken = 8 hours Average speed =Total distanceTotal time=40008 = 50 km/hour.

The odometer of a car reads 3000 km at the start of a trip and 3400 km at the end of the trip. If the trip took 8 hours, calculate the average speed of the car in km $h^{- 1}$ .

The correct option is B $50 k m h^{- 1}$
Total distance covered by car
= (3400 - 3000)km = 400 km
Total time taken = 8 hours
Average speed $= \frac{T o t a l d i s t a n c e}{T o t a l t i m e} = \frac{4000}{8}$
= 50 km/hour.