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1. Karim drove for h hours at a constant rate of r miles per hour . How many miles did he go during the final 20 minutes of his drive ?
- A. 20r
- B. 20r
- C. 20r
- D. 20r
Answer: Option C
Explanation:
we know,
Distance (D) = Speed (S) * Time (T)
so, S * T = r*20/60 mins
= r / 3.(ans)
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