A box is filled with 2 blue cards, 2yellow cards, and 16 red cards. A card is chosen at random from the box. What is the probability that it is a blue or a red card?
Write your answer as a fraction in simplest form.
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total cards in the box=20
probability of picking blue card =2/20
which is 1/10
probability of picking red card is =16/20
which is 8/10
the word OR refers to +
hence the probability of picking red or blue =8/10+1/10
the answer is 9/10
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