- A 20 mins
- B 15 mins
- C 25 mins
- D 30 mins
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Answer:
A
Explanation:
The speed ratio between the two objects is given as 1:4/5 = 5:4. The time ratio between the two objects is given as 4:5. We can use the speed ratio and the time ratio to find the unknown time ratio. Since the speed ratio is 5:4 and the time ratio is 4:5, we can set up the following equation: 5/4 = (time ratio)/5. Solving for the time ratio, we get time ratio = 5 * (5/4) = 5 * 1.25 = 20. Therefore, the time ratio between the two objects is 20.