Question

a rectangular grassy lawn measuring 30m by 28m is to be surrounded externally by a path which is 2.5 m wide. find the cost of levelling the path at the rate of 4 per sq. m
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Answer 1

Answer:

Area of path is= area of external rectangle- area of the inner rectangle

(34×32)-(30×28)

=248cm square

Cost of leveling the cost =248×4=1240rs.

Answer 2

Step-by-step explanation:

Not sure but most likely 1160

We first need to find the perimeter of the lawn

Rectangle Perimeter = 2(Length+Breadth)

= 2(30 + 28)m

= 2 x 58

= 116

Hence 116 is perimeter of the path as it surrounds the perimeter of the lawn.

As it's width is 2.5, we can find its area by doing

Area of Rectangle = Length x Breadth

= 116m x 2.5m

= 290sq.m

If one sq. m = 4

290 sq. m = 290 x 4

290 sq.m = 1160