Question

20 cards 1,2,3...20 are put in a box and mixed throughly. one person drawn a card from the box . find the probability that the number on the card is
a) even
b) a prime
c) divisible by 4
please answer this question ​

Answer 1

Answer:

disible by four.

hope it is helpful

Answer 2

Answer:

probability = Number of favourable outcome / total outcome

P(E) =n(E) / n(S)

Total outcome = { 1,2,3,..........20 }

a) even number = ( 2,4,6,8,10,12 14,16,18,20)

P ( EVEN NO.) = 10/ 20 = 1/2

b) Prime number =( 2 , 3,5,7,11,13,17,19)

P (Prime number) = 8/20

c) Divisible by 4 = ( 4 , 8,12,16,20)

P ( divisibilty of 4) = 5/20

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