A detergent powder company is having a contest. each pack of 1 kg contains one of the letters b, a, m and 0. in every 20 packs,there are four bs,five as,ten ms and one o. what is the probability that a pack will have a 6?
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A detergent company is having a contest, each pack of 1 kg contains one of the letters b, a , m and o. In every 20 packs, there are 4 b's, five a's, ten m's and one o. Then,
Since, a pack is drawn without replacement, then probability of getting a letter = total number of packs having the letter/ total number of packs. Then,
Probability of getting "b" = 4/20 = 1/5
Probability of getting a "a" = 5/20 = 1/4
Probability of getting a "m" = 10/20 = 1/2
Probability of getting a "o" = 1/20.
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