Question

A dice is thrown a fixed number of time. If probability of getting even number $3$ times is same as the probability of getting even number $4$ times, then probability of getting even number exactly once is

• A. $\frac{1}{4}$
• B. $\frac{3}{128}$
• C. $\frac{5}{64}$
• D. $\frac{7}{128}$

Answer 1

The correct option is D $\frac{7}{128}$