Question

by 50 m, such that each is parallel to one of the sides of the park.
ss-roads each of width 5 m run at right angl
6. A rectangular grassy lawn measuring 45 m by 20 m is to be surrounded by a path which is 3 m wide.
Calculate the cost of levelling the path at the rate of 2.50 per sq. m.
in naths run parallel to the sides of the rectangle through
of the park.
7. A rectangular
uth are 3 m and 2 m respectively. Find​

Answer 1

Length of lawn =30m

Breadth of lawn =28m

Therefore,

Area of lawn (A  )=l×b=30×28=840m  

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 )=34×32=1088m

Therefore,

Area of path

=1088−840=248m

Cost of levelling =Rs.5 per square meter

Therefore,

Cost of levelling path =5×248=Rs.1240

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