20 cards numbered 1,2,3,……20 are put in a box and mixed thoroughly

1.	20 cards numbered 1,2,3,……20 are put in a box and mixed thoroughly. One person draws a card from the box, the probability that the number on the card is divisible by 2 and 3 both is1) 1 / 102) 3 / 203) 1 / 54) 3 / 10
Answer» 2) 3 / 20 P(card is divisible by 2 & 3) = P(card is divisible by 6) ∵ 6 , 12, 18 are are divisible by 6 ⇒ p (card is divisible by 6) = 3 / 20

20 cards numbered 1,2,3,……20 are put in a box and mixed thoroughly. One person draws a card from the box, the probability that the number on the card is divisible by 2 and 3 both is1) 1 / 102) 3 / 203) 1 / 54) 3 / 10

Answer»

2) 3 / 20

P(card is divisible by 2 & 3) = P(card is divisible by 6)

∵ 6 , 12, 18 are are divisible by 6

⇒ p (card is divisible by 6) = 3 / 20

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20 cards numbered 1,2,3,……20 are put in a box and mixed thoroughly. One person draws a card from the box, the probability that the number on the card is divisible by 2 and 3 both is1) 1 / 102) 3 / 203) 1 / 54) 3 / 10

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