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
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*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 ...
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