Question

8. A rectangular field is 60 m long and its breadth is 15 m less than its length.
Find the cost of turfing it as the rate of 2.50 per squares metre. Also, find
the cost of fencing it at the rate of 3 per metre.​

Answer 1

Given

A rectangular field is 60m long and it's breadth is 15 m less than its length.

Cost of turfing per m²=₹2.50

Cost of fencing is @₹3/m

To Find

Cost of turfing and cost of fencing

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

length of the Rectangular field =60m

Given that breadth is 15m less than its length

According to the question

Breadth=60-15=45m

Now, to find the cost of turfing we must have to find the area of Rectangular field.

➠Turfing means to cover a piece of land with a layer of turf grass.

Area of Rectangular field=length×breadth

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=60\times45$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=$2700m²

Cost of turfing =₹2.50×2700m²

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=₹6750

Now,we have to find cost of fencing so,it is clear we have to find the perimeter.

➠Fencing means to cover outer boundary of field with wire or other material.

Perimeter of Rectangular field=2(length+ breadth)

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=2(60+45)

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=2(105)

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=210m

Cost of fencing the field @₹3/m=₹3×210m

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$=₹630

Extra information=>

Area is Space or region which is covered by a solid object/figure it is said to be area of that object.

Area depends upon the dimensions of the figure.If dimensions is larger then larger will be the area of that object/figure and vice -versa.

PERIMETER

Perimeter is the total distance occupy by a solid 2D figure around its edge.

Answer 2

Answer:

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