- A48 km/h
- B36 km/h
- C40 km/h
- D13.3 km/h
Step-by-Step Solution
Times are in the ratio 3 : 4, so the 1-part difference is 30 : A takes 90 . Speed = km/h. (13.3 is the value with the wrong unit.)
Answer: A) 48 km/h
In a 1.2 km race the speeds of A and B are in the ratio 4 : 3, and A wins by 30 seconds. What is A's speed?
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