The length and breadth of a playground are 70m*80cm and 42m*70 CM. Find the cost of levelling it at the rate of rupees 2 per square meter also find the distance covered by a boy to take 3 rounds of the field
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area of ground=l*b
70*80=5600
length of another ground=l*b
42*70=2940
cost of1m sq.=2 so cost of 5600=5600*2=11200
cost of another ground=2940*2=5880
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