Question
A cow is tethered in he middle of a field with a 14 feet long rope . If the cow grazes 100 sq.ft. per day, then approximately what time will be taken by the cow to graze the whole field ?
Answer: Option B
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Area of the field grazed = `(22/7 xx 14 xx 14)` sq.ft. = 616 sq.ft.
Number of days taken to graze the field = `616/100` days = 6 days (approx).
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