Question

The cost of fencing a circular plot at the rate oft 15 per metre is r 3,300. what will be the cost i flooring the plot at the rate of r.s 100 per square metre ?

Answer 1

Let the radius of the plot be x M
so perimeter of the plot is 2πx M
rate of fencing per meter is Rs 15
total cost is Rs 3300
so 15×2×22/7×x=3300
or 30x =3300÷22/7
or 30x=3300×7/22
or 30x=150×7
or x=150×7/30
or x=35
Radius is 35 M
area is πx²=22/7×35×35 M²
=110×35 M²
cost of tiling it is Rs 100/M²
so cost is Rs 110×35×100
=Rs 385000

Answer 2

Hey your answer is
-----------------------------

Let the radius be x meters

perimeter of the plot 2πx meters

Rate of fencing per meter is RS 15

Total cost of fencing is =3300

=>15×2×22/7×x=3300

=>30x=3300÷22/7

=>30x=3300×7/22

=>30x=150×7

=>x=35

•°•cost for fencing the plot at the rate of RS 100per sq /m.

=110×35×100

=RS 385000

$hope \: it \: helps$