Question 37
Ratio, Percentages and RatesA boy walks 800 m in 20 minutes. Calculate his average speed in km per hour
- A.2.4
- B.4
- C.16
- D.24
Show the answer and explanation
Answer: A (2.4)
Explanation
0.8 km in 1/3 hour: 0.8 × 3 = 2.4 km/h.
A boy walks 800 m in 20 minutes. Calculate his average speed in km per hour
Answer: A (2.4)
0.8 km in 1/3 hour: 0.8 × 3 = 2.4 km/h.