Cards numbered 1 to 20 is put in box. Find the probability of getting a i) factor of 10 ii) a prime number
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Total no of cards=20
Total no of prime no.=8
Total no. Of factors of 10=4
1. Pof getting a prime no.=8/20=2/5
2.pof getting factors of 10= 4/20=1/5
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