Question

Which of the following rational number lies between $\frac{4}{9}$ and $\frac{4}{5}$?

• A. $-1$
• B. $\frac{28}{45}$
• C. $0$
• D. $1$

Answer 1

Answer: (B)

$\frac{28}{45}$

$Mean=\frac{(\frac{4}{9}+\frac{4}{5})}{2}=\left(\frac{20+36}{45}\right)\times \frac{1}{2}=\frac{56}{45}\times \frac{1}{2}$
$=\frac{28}{45}$

Mean of two numbers always lies between the two numbers.

So, answer is option $B.$