Question

Find the Probability of, A King, ace, jack of clubs or queen of diamonds appears in drawing a single card from a well shuffled ordinary deck of 52 cards.

Answer 1

total cards=52.

king=4

ace=4

Jack of club=1

Queen of diamond=1

no. of favourable outcomes=10

prob.= favourable outcomes/total outcomes

prob.=10/52

=5/26

Answer 2

just memorise few points

A deck of card consists of 52 cards

1) 26 red cards (hearts and diamond), 26 black cards( spade and club)

2) in total we have 12 face cards (king queen jack from each lot of 13 cards (so 4*3=12))

3)each set (hearts, diamond, spade and club) has 13 cards 3 face card 10,9,8,7,6,5,4,3,2,A

now coming to the ques

P(getting a king)=4/52= 1/13

P(getting an ace)=4/52= 1/13

P(getting a jack of clubs)=2/52= 1/26

P(getting a queen of diamonds)=1/52