Question

The cost of fencing a rectangular field at Rs30 per meteri Rs2400.If the length of the field is 24m,then the breadth is​

Answer 1

Answer:

16m is the breadth

Step-by-step explanation:

the answer is

first we will learn the formula of an rectangle which is

2( length + breadth)

of the cost of 1m is 30

and total cost is 2400

then to find the total number of m

we need to take the perimeter because they told fencing.... fencing goes around the ground so it is perimeter

we should divide 2400 by 30.

2400/30

which is 80m

so the perimeter is 80 m

lenght as given is 24 m

if we substitute this number in the formula for perimeter of rectangle we get..

2( 24+ breadth) = 80m

48 + 2 breadth = 80m

2 breadth = 80 - 48

2 breadth = 32

now we will divide 32 by 2

32/2

which is 16

breadth = 16m

hope this helps

Answer 2

Answer: BREADTH = 16m

Step-by-step explanation:

Given - Cost of fencing per metre = 30

Cost of fencing of rectangular field = 2400

length of field = 24m

solution-

First we will find the perimeter of the field. For that we have the cost of fencing.

cost of per metre = 30

Cost of fencing the whole rectangular field = 2400

therefore, 2400 / 30 = perimeter of field

80 m = perimeter of field

The field is rectangular.

Perimeter of rectangle = 2(L + B)

80 = 2(24 + B)

80 = 48 + 2B

80 - 48 = 2B

32 = 2B

32 / 2 = B

16 = B

Therefore the breadth = 16m

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