A rectangular grassy plot 110 m by 65 m has a gravel path 2.5 m wide all round

A rectangular grassy plot 110 m by 65 m has a gravel path 2.5 m wide all round it on the inside. Find the cost of gravelling the path at 80 paise per sq. meter.
(a) 591
(b) 599
(c) 670
(d) 680

Anurag Mishra Professor Asked on 8th March 2016 in Maths.
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    Answer: (d) 680 

    Anurag Mishra Professor Answered on 9th March 2016.
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