Question

a rectangular crazy lawn measuring 30 by 28 is to be surrounded externally by the path which is 2.5 metre wide find the cost of levelling the path at the rate of rupees 4 per square metre​

Answer 1

Step-by-step explanation:

Length of lawn =30m

Breadth of lawn =28m

Therefore,

Area of lawn (A

1

)=l×b=30×28=840m

2

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 (A

2

)=34×32=1088m

2

Therefore,

Area of path =A

2

−A

1

=1088−840=248m

2

Cost of levelling =Rs.5 per square meter

Therefore,

Cost of levelling path =5×248=Rs.1240