Question

There are only red, yellow and orange buttons in a jar

the numbers of red buttons, yellow buttons and orange
buttons are in the ratio 2:4:9
work out the percentage of orange buttons in the jar​

Answer 1

7+4+9= 20 parts per whole

7+4+9= 20 parts per wholered: 7/20 = 35%

7+4+9= 20 parts per wholered: 7/20 = 35%yellow: 4/20 = 20%

7+4+9= 20 parts per wholered: 7/20 = 35%yellow: 4/20 = 20%orange: 9/20 = 45%