C. Solve for each:.
1. A car travels 400 kilometers in 16 hours. Calculate the average speed of the car
2. The average speed of a tricycle that travels 28 kilometers per in 60 minutes
3. A man drove 40 km/h for 2 hours, and then 60km/h for another 3.5 hours. What was the total distance the man travelled?
4. A boy walks at a speed of 4 kmph. How much time does he take to walk a distance of 20 km?
5. A boat covers a certain distance in 2 hours, while it comes back in 3 hours. If the speed of the stream is 4 kmph, what is the boat's speed in still water?
1. A car travels 400 kilometers in 16 hours. Calculate the average speed of the car
2. The average speed of a tricycle that travels 28 kilometers per in 60 minutes
3. A man drove 40 km/h for 2 hours, and then 60km/h for another 3.5 hours. What was the total distance the man travelled?
4. A boy walks at a speed of 4 kmph. How much time does he take to walk a distance of 20 km?
5. A boat covers a certain distance in 2 hours, while it comes back in 3 hours. If the speed of the stream is 4 kmph, what is the boat's speed in still water?
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Answer:
1. 25kph
2. 28kph
3. 290kms
4. 5hrs
5. 20kph
Step-by-step explanation:
1. 400 ÷ 16 = 25kph
2. 60 minutes = 1hr, therefore, 28kph
3. 40×2 = 80
60 × 3.5 = 210
80 + 210 = 290
4. 20÷4 = 5hrs
5. 3(W–4) = 2(W+4)
3W - 12 = 2W+8
3W – 2W = 8 + 12
W = 20
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