Abox contains 30cards which are numbered from 1 to 30.one card is selected at a random,the probability of that prime number which is a two digit number is 1/5 .is it correct.
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Step-by-step explanation:
Total no of outcomes= 30
1) favourable outcomes = 21
probability= 21/30 = 7/10
2) favourable outcomes= 10
probability = 10/30 = 1/3
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