Question

10.
A rectangular field is 55 m long and its breadth is 15 m less than its length. Find
(i) the cost of levelling it at * 10.50 per sq. m.
(ii) the cost of fencing it at * 12 per m.​

Answer 1

Step-by-step explanation:

ii) the cost of fencing:-

given, length of field 55 m

breath of field 15 m

to find:- the perimeter or cost fencing 12 per m

SOLUTION:- perimeter of rectangle is 2(l+b)

P= 2( 55+15)

= 140m

to find :- the cost of fencing 12/m

12 × 140

= 1680 RS

the cost of fencing is 1680 Rs