Question

A spinner is divided into sections of equal size, of which some are red, some are blue, and the remaining are green. The probability of the arrow landing on a section colored red is 50%. The probability of the arrow landing on a section colored blue is 10%. What is the probability of the arrow landing on a section colored green?

10%
40%
50%
60%

Answer 1

The answer is 40% because 100%-50%-10%=40%

Answer 2

probability of red is 50%
probability of blue is 10%
So off course probability of green is 100-(50+10)=100-60=40%