Math, asked by avijitnath5pa9ng9, 1 year ago

a rectangular plot of land is 50 M wide the cost of fencing the plot at a rate of 18 rupees per metre is 4680 rupees find. A) length of the plot. B) the cost of levelling the plot at the rate of 7 rupees 6 paise per metre square

Answers

Answered by TooFree
24

*Note that the question state that " 7 rupees 6 paise per metre square". After clarifying with the user, it is meant to be " 7 rupees 60 paise per metre square". Answer below is done according to the corrected information.

Find the perimeter:

Given that 1 m = Rs 18

Rs 18 = 1 m

Rs 1 = 1/18 m

Rs 4680 = 1/18 x 4680 = 260 m


Find the length:

Perimeter = 2( Length + Breadth)

260 = 2( Length + 50)

260  = 2 Length + 100

2 Length = 260 - 100

2 length - 160

Length = 160 ÷ 2 = 80 m


Find the area:

Area = Length x Breadth

Area = 80 x 50 = 4000 m²


Find the cost of levelling:

1 m² = Rs 7.60

4000 m² = 7.60 x 4000 = Rs 30,400


Answer: (a) The length is 80m (b) The cost is Rs 30,400



TooFree: Ok .. let me take a look again ...
avijitnath5pa9ng9: what happens
TooFree: Did you mean 60 paise when you write 6 ?
avijitnath5pa9ng9: yes
avijitnath5pa9ng9: sorry
TooFree: ok .. then it makes sense .. wait .. let me amend
TooFree: Done
avijitnath5pa9ng9: thanks thanks thanks
TooFree: You are welcome :)
avijitnath5pa9ng9: sorry for the disturbing you but can you please answer my question. My question is how can you discuss the basic operation on rational numbers............
Answered by nonchalant30
1

Answer:

hope it helps

the answer is given in the pictures attached

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