Question

Sam's taking a pen from his case. He has 1 black ,2 purple ,4 blue, and 3 red pens. If he chooses one without looking, what's the probability that he'll choose a blue one

Answer 1

probablity=desiredoutcomes/totalpossibleoutcomes
total possible outcomes=1+2+4+3=10
desired outcomes=4 blue


probablity=4/10=2/5=40%