Question 49
Ratio, Percentages and RatesIf x kmh−1 = y ms−1, then y =
- A.7x/18
- B.11x/20
- C.4x/15
- D.5x/18
Show the answer and explanation
Answer: D (5x/18)
Explanation
1 km/h = 1000 m ÷ 3600 s = 5/18 m/s, so y = 5x/18.
If x kmh−1 = y ms−1, then y =
Answer: D (5x/18)
1 km/h = 1000 m ÷ 3600 s = 5/18 m/s, so y = 5x/18.