Question

A gumball machine contains red, orange, yellow, green, and blue gumballs. twenty percent of the gum balls are red, 30% are orange, 5% are yellow, 10% are green, and the rest are blue. if there are a total of 120 gumballs, how many more blue gumballs are there than yellow gumballs?

Answer 1

In this case, we are only interested with the number of blue gumballs and yellow gumballs. In the given, it is stated that there are 5% yellow gumballs while the percentage of the blue gumball is yet to be calculated.

The total percent should be 100%, therefore the % blue gumballs is:

% blue gumballs = 100% - 20% - 30% - 5% - 10%

% blue gumballs = 35%

 

Therefore the total number of each gumballs for each color is:

yellow gumballs = 120 * 0.05 = 6

blue gumballs = 120 * 0.35 = 42

 

Hence, 42 – 6 = 36

Therefore there are 36 more blue gumballs than there are yellow gumballs.