Question

The lenght of a plot is twice its breadth. Its area is 4050 Sq.m. Find the cost of the fencing the plot at Rs. 2.50 meter

Answer 1

Area =LB=B×BL=2B²=4050

So B=45/-45 (But B is scalar)

Therefore , B=45 metres

So perimeter = 2(L+B)

2(90+45). (L=2B)

2(135)=270 metres

Cost = 270 ×rate =270×2.50=675