Class Interval F 5 10-30 o 30-50 50-70 70-90 90-110 120-130 Fi 5,8,f1,20,f2,2.
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Ravi ties his cow on one corner of his field to graze. It is a rectangular field of length 15m and breadth 7m, what is the area the cow can graze? What is the area left ungrazed?
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