Question

In a box there are four marbles and each of them is marked with distinct number from the set {1, 2, 5, 10}. If one marble is randomly selected four times with replacement and the number on it noted, then the probability that the sum of numbers equals 18 is

• A. $\frac{1}{64}$
• B. $\frac{3}{16}$
• C. $\frac{5}{32}$
• D. $\frac{3}{32}$
• E. $\frac{1}{32}$

Answer 1

Answer: (D)

$\frac{3}{32}$

Answer 2

The correct option is (D) : $\frac{3}{32}$