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1. A and B go cycling in the same direction with speeds of 6 km /hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively . What is the speeds of the car?
- A. 22 km/hr
- B. 22 km/hr
- C. 22 km/hr
- D. 22 km/hr
Answer: Option C
Explanation:
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