Question

find the cost of fencing of rectangle field 34m20cm long and 1630cm wide at rupees 40 per metre.what will be the cost of turfing it at rupees 21 per square metre?

Answer 1

Length = 34m 20cm = 3420cm
Breatdth = 16m 30cm = 1630cm
Therefore, Perimeter=
$2(l + b) \\ = 2(3420cm + 1630cm) \\ = 2 \times 5050cm \\ = 10100cm = 101m$
Now, Perimeter = 101m....
And Rate = 40Rs/m
So, Total cost of fencing =
$= perimeter \times rate \\ = 101m \times \frac{40rs}{1m } \\ = 4040rs$
So....Now,
Area of the Field =
$l \times b \\ = 34.20m \times 16.30m \\ = 560.88 {m}^{2}$
Now, Rate = 21Rs/sq. m
So, Total Cost of Turfing =
$area \times rate \\ = 560.88 {m}^{2} \times \frac{21rs}{1 {m}^{2} } \\ = 11778.48rs$
THERE YOU GO!!!.....