Question

A rectangular grassy lawn measuring 38m by 25m has been surrounded externally by a 2.5m wide path. Calculate the cost of gravelling the path at the rate of 120Rs per m sq.​

Answer 1

Answer:

Area of grassy lawn = 38×25m

2

=950m

2

The rectangle formed by the gravelled path plus grassy lawn has the size (38+2×2.5)×(25+2×2.5)m.

The area of this rectangle = 1290m

2

Area of gravelled path = 340m

2

Cost = 340×120Rs=Rs40,800

Answer 2

Step-by-step explanation:

Area of grassy lawn = 38×25m2=950m2

The rectangle formed by the gravelled path plus grassy lawn has the size (38+2×2.5)×(25+2×2.5)m.

The area of this rectangle = 1290m2

Area of gravelled path = 340m2

Cost = 340×120Rs=Rs40,800