Question

A box contains 32 marbles. There are 12 red marbles, 14 blue marbles, and 6 yellow marbles.
What percent of the marbles are NOT yellow?


19%

81%

23%

77%

Answer 1

To find the percentage of marbles that are NOT yellow, first determine the number of marbles that are yellow. There are 6 yellow marbles in the box.

Next, calculate the number of marbles that are NOT yellow:

\[
\text{Total marbles} - \text{Yellow marbles} = 32 - 6 = 26
\]

Now, to find the percentage of marbles that are NOT yellow, use the following formula:

\[
\text{Percentage of NOT yellow} = \left(\frac{\text{Number of NOT yellow marbles}}{\text{Total number of marbles}}\right) \times 100
\]

Substituting in the numbers:

\[
\text{Percentage of NOT yellow} = \left(\frac{26}{32}\right) \times 100
\]

Calculating this:

\[
\frac{26}{32} = 0.8125
\]

Now, converting to percentage:

\[
0.8125 \times 100 = 81.25\%
\]

Rounding gives us approximately 81%. Therefore, the percentage of marbles that are NOT yellow is:

\[
\boxed{81\%}
\]