Question

A rectangular grassy lawn measuring 60 m by 20 m is to be surrounded externally by a path, which is 1.5 m wide. Find the cost of tiling the path at the rate of $5 per sq.m?

Answer 1

Answer:

Rs 1245

Step-by-step explanation:

Explanation in image pinned.

Answer 2

Answer:

$1245

Step-by-step explanation:

Length of lawn = 60m

Breadth of lawn = 20m

So, area of lawn = 60*20 = 1200m^2

Length of lawn including the 1.5m wide path on both sides = 60 + 2(1.5) = 60 + 3 = 63m

Breadth of lawn including the 1.5m wide path on both sides = 20 + 2(1.5) = 2. + 3 = 23

So, area of lawn including the 1.5m wide path on all 4 sides = 63*23 = 1449m^2

Therefore, area of the path : Difference of the 2 areas : 1449 - 1200 = 249m^2

Cost of tiling of path for 1 sq.m = $5

So, cost for 249m^2 = 249*5 = $1245