Question

what will be the cost of erecting a fence around a square piece of ground whose side is 30 M at the rate of rupees 20.80 per 100 meter

Answer 1

hiii!!!

here's ur answer...

given the side of the square piece of ground is 30m.

ATQ,

we have to find the cost of erecting a fence.

therefore we have to find it's perimeter.

perimeter of the square piece of ground = side × 4

= 30 × 4

= 120m

if the cost of 100m is ₹20.8, then cost of 120m

= 120 × 20.8/100

= 2496/100

= ₹24.96

hence, cost of erecting the fence around the square piece of land is ₹24.96

hope this helps..!!

Answer 2

SOLUTION:-

GIVEN THAT,

square piece's ground side (a) = 30mtr

suare fence around = 4a

4×30 = 120mtr

cost of electing fence = 20.80 per 100 mtr

cost of 1 mtr electing fence = 20.80/100

= 0.2080 rupees

cost of 120 mtr = 120×0.2080

= 24.96 rupees