The median of rational numbers 1/2 , 2/3 , 5/6 , 1/4 and 3/5
The median of rational numbers \(\frac{1}{2}, \frac{2}{3}, \frac{5}{6}, \frac{1}{4}\) and \(\frac{3}{5}\)
A) 1/2
B) 3/5
C) 2/3
D) 5/6
2 Answers
Correct option is (B) 3/5
LCM of 2, 3, 6, 4 and 5 = 60
\(\therefore\) \(\frac{1}{2}=\frac{1}{2}\times\frac{30}{30}=\frac{30}{60},\)
\(\frac{2}{3}=\frac{2}{3}\times\frac{20}{20}=\frac{40}{60},\)
\(\frac{5}{6}=\frac{5}{6}\times\frac{10}{10}=\frac{50}{60},\)
\(\frac{1}{4}=\frac{1}{4}\times\frac{15}{15}=\frac{15}{60}\) and
\(\frac{3}{5}=\frac{3}{5}\times\frac{12}{12}=\frac{36}{60}.\)
\(\because\) \(\frac{15}{60}<\frac{30}{60}<\frac{36}{60}<\frac{40}{60}<\frac{50}{60}\)
\(\therefore\) \(\frac{1}{4}<\frac{1}{2}<\frac{3}{5}<\frac{2}{3}<\frac56\)
\(\therefore\) Median \(=(\frac{n+1}2)^{th}\)
\(=3^{rd}\) observation in ascending order
\(=\frac{3}{5}\)