Question

a playground measures 300m by 170 M find the cost of planting grass on this at the rate of Rs 80 per hectare

Answer 1

Hello mate!!



To find the cost of planting grass we have to find area of the field so
area of field =l×b
=300×170=51000sqare
now convert into hectare
i t will be 51000/10000
as 1 hectare=10000m sq
so area field =5.1 hectare sq
now cost = 5.1 x0.80 p
=
0.408 p

Hope it helpful

Answer 2

given,
dimensions of playground = (300×170) sq. metre
=> 51000 square metre.
1 hectare = 10000 metre square.
51000 metre square = 51000/10000
=> 5.1 hectare.
Cost of planting grass = (5.1×80) = 408
hence the required cost is 408 Rs.