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The length and perimeter of a rectangle are in the ratio of 5:18. What will be the ratio of its length and breadth?
A) 4 : 3
B) 3 : 5
C) 5 : 4
D) 4 : 7
Correct answer:
C) 5 : 4
Description for Correct answer:
According to the question,
\( \Large \frac{l}{2(l+b)}=\frac{5}{18} \)
=> 10 l+ 10 b=18 l => 8 l=10 b
=> \( \Large \frac{l}{b}=\frac{10}{8}=\frac{5}{4} \)
l : b = 5 : 4
Hence, ratio of length and breadth of a rectangle is 5 : 4.
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