Question

a rectangular field is 75m long and it's breadth is 15 m less than its length. find the cost of fencing it at the rate of 4 per metre. also find the cost of turfing it at the rate of 7 per sq m​

Answer 1

Answer:

Rs. 1080 and Rs.31500

Step-by-step explanation:

Length = 75m

Breadh = 75m -15m = 60m

Now, Perimeter = 2(L+B)

= 2× ( 75+60)

= 2× 135

= 270 m

so, cost of fencing = 270 m × Rs. 4

= Rs. 1080

Now, to find the cost of turfing, we need to find it's area.

Area = 75m × 60 m

= 4500 sq m

Therefore cost of turfing = 4500×Rs. 7

= Rs. 31500