Question

There is a narrow rectangular plot, reserved for a school, in Mahuli village. The
Tength and breadth of the plot are in the ratio 11:4. At the rate 100 per metre it will
cost the village panchayat 75000 to fence the plot. What are the dimensions of
the plot?
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Answer 1

I guess it is from ncert book,ok let me help u,pls mark as brainliest answer

There is a narrow rectangular plot, reserved for a school, in mahuli village. the length and breadth of the plot are in the ratio 11:4. 

let the common multiple be x 

the length will be 11x 

breadth = 4x 

Perimeter = 2( L + B ) 

=2(11x+4x) 

= 2*15x

=30x 

At the rate Rs 100 per meter 

30x * 100 = 3000x 

3000x= 75000 

3x=75 

x=25 

11x = 11*25 = 275m 

4x=4*25 = 100 m 

275m & 100m are the dimensions of the Plot

Hope u get it

Answer 2

total cost = Rs. 75,000

cost per metre = Rs. 100

total area = 75000/100

= 750

Dimensions = 2(11x + 4x)

750 = 2(15x)

750/2 = 15x

375 = 15x

375/15 = x

25 = x

Then the dimensions are 11x ==> 11(25)

=275

4x ==> 4(25)

=100

length = 275 metres

breadth = 100 mrtres