leishaamcnair3430 leishaamcnair3430 27-02-2024 Mathematics contestada An iron contains 60 blue pens and 40 red pens. Half of the presence of each one is defective. If one pen is chosen at random, what is the probability that it is defective or a red pen? a) 0.2 b) 0.3 c) 0.4 d) 0.5
