Question

A rectangular field (40x30)m is surrounded by a uniform path of 2m. The coast of laying bricks at a rate of ₹5 per square metre along the path is​?

Answer 1

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Question

A rectangular grassy lawn measuring 30m by 28m is to be surrounded externally by a path which is 2m wide. Find the cost of leveling the path at the rate of Rs.5/m2.  

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Solution

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Length of lawn =30m

Breadth of lawn =28m

Therefore,

Area of lawn (A1)=l×b=30×28=840m2

Now,

Length of lawn including path =30+2+2=34m

Breadth of lawn including path =28+2+2=32m

Therefore,

Area of lawn including path (A2)=34×32=1088m2

Therefore,

Area of path =A2−A1=1088−840=248m2

Cost of levelling =Rs.5 per square meter

Therefore,

Cost of levelling path =5×248=Rs.1240

Step-by-step explanation:

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