Question

A rectangular garden is 175 m long and 96 m broad. Find the cost of fencing it at Rs 17.50 per metre. Also, find the cost of ploughing it at Rs 4.50 paise per square metre.

Answer 1

area of rectangular garden=l×b=175×96=16800m.sq
cost of fencing per m =17.50 Rs
m=root 16800
m=129.62 (approx)
cost of fencing 129.62 m =17.50×129.62=2268.35Rs
Cost of fencing per 16800 m.sq=17.50×16800=29400 Rs

cost of ploughing per sq.m=4.50 Rs
cost of ploughing 16800 sq.m=16800×4.50=75600 Rs

$hope \: it \: helps \: u \\ thanks$

Answer 2

Cost of fencing = ₹17.50 per metre

So for finding the cost of fencing we should take out the perimeter first

Perimeter= 2×(l+b)

2×(175+96)

2×271 = 542m

Cost of fencing = we will multiply perimeter with the cost of fencing of 1 m

Cost of fencing = 17.50×542

= ₹9485

Cost of ploughing = we need to first take out the area and multiply it by cost given

Cost of ploughing = area = l×b

175×96

= 16800

Cost of ploughing = 16800×4.50

= Rs 75600