The length and breadth of a playground are 80 m and 35 m respectively. – InterviewSolution

1.	The length and breadth of a playground are 80 m and 35 m respectively.(a) Find the cost of fencing it at 4.50 per square metre(b) How long will a boy take to go three times round the field, if he walks at the rate of 1.5 mpe9.second?
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