Question

There are 100 skittles in a bowl. their colors are red, green, and yellow. 2/5 are yellow and 1/4 are green. how many red skittles are in the bowl?

Answer 1

In this case we have 1/4 are green then (1/4) * 100 = 25. Then, 2/5 are yellow then (2/5) * 100 = 40. Therefore if the total number of skitles is 100, then the red skittles will be 100-40-25 = 35. There are 35 red skitles.

Answer 2

There are
`35` red skittles in the bowl

Explanation:

Let

x-----> the number of red skittles in the bowl

we know that

`(2)/(5)100+(1)/(4)100+x=100`

solve for x

`40+25+x=100\\x=100-65\\ x=35`