Question

Find the cost of fencing of a rectangular land, if it has an area of 100 m² and one side of length 20 m at a rate of 30 per meter.

• A. 1500
• B. 1200
• C. 3000
• D. 2400

Answer 1

Answer:

A. 1500

$Area=100 m^2$

$one side = 20m$

$l\times w=Area$

$20\times w=100$

$w=5$

$Perimeter=2(l+w)$

$=2(20+5)$

$=50$

Cost per meter = 230 Total fencing cost = Perimeter × Rate:

$50\times 30=1500$