A path 1m wide is built inside a square park of side 30m along its sides.Find the area of the path.Calculate the cost of constructing the path at the rate of70/- per metre square
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labourer is engaged for 20 days on the condition that he will receive 280 for each day he works and will be fined 60 for each day he is absent. If he receives ? 2540 in all, for how many days did he remain absent?
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