B starts 4 minutes after A from the same point, for a place at a distance of 7 miles from the starting point. A on reaching the destination turns back and walks a mile where he meets B. If A's speed is a mile in 8 minutes then B's speed is a mile in ____ minutes.
A) 9 B) 12 C) 10 D) 8
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Answer:
12 minutes
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2
Answer:
c. 10 minutes. speed of b
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