A car going 40 miles per hour set out on an 80 miles trip at 9.00 A.M. Exactly 10 minutes latter, a second car left from miles per hour, was the second car going if it caught up with the first car at 10.30 A. M.?
A. 45
B. 500
C. 53
D. 55
সঠিক উত্তরঃ
A.
45
Explanation:
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