to of two digits whose sum is 9. If 27 is added to the number, the
20. The length of a rectangular plot exceeds its breadth by 5 metres. If the perimeter
19. The length of a rectangle is b
is 148 m. Find its dimensions.
of the plot is 142 metres. Find the dimensions of the plot.
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Answer:
l=38, b =33
Step-by-step explanation:
I will assume that you want to know the answer of the following question only. Correct me if I am mistaken in my assumption
20. The length of a rectangular plot exceeds its breadth by 5 metres. If the perimeter of the plot is 142 metres. Find the dimensions of the plot.
l = b + 5
P = 2(l+b) = 2(b+5+b) = 2(2b+5) = 142
∴ 2b+5 = 142/2 = 71
∴ 2b = 71 - 5 = 66
b = 33,
l=33+5= 38
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