Question

1.Ricardo took 2/3 h to run 10 km. Find the average speed of Ricardo in km/h.

2.Jack drove at a speed of 60 km/h for 150 km. He then drove the remaining 120 km at a speed of 80 km/h. Find his average speed for the whole journey.

3.A toy bus moved 280 cm in 4 seconds. Find the speed of the toy bus.

4.Huang Zhi Bin takes 15 minutes to jog to the park at a speed of 16 km/h.
How far did he jog?

5.A car is travelling at a speed of 65 km/h.
Find the distance travelled by the car in 3 hours.

Answer 1

Answer:

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Step-by-step explanation:

1. speed = distance /time =

$\frac{10}{ \frac{2}{3} } = \frac{10 \times 3}{2} = \frac{30}{2} = 15km/hr$

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5. speed = distance /time

$65 = \frac{distance}{3} \\ distance = 65 \times 3 \\distance = 195km$