If two cards are taken one after another without replacing
from a pack of 52 cards what is the probability for the two
cards be queen.
Answers were Sorted based on User's Feedback
Answer / ariya
when u take a card first time, there are 52 cards out of
which 4 are queen....4/52
when u take a card second time, there are 51 cards out of
which 3 are queen....3/51
so probablity is = (4/52)*(3/51)=1/221
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / rajkumar
we hav to take two cards from a pack of 52 cards
n(s)=52C2 (ie) 52*51/2*1
= 1326
the event given is the probability that both are queens so that
n(E)= 4C2 (ie) 4*3/2*1
=6
P(E)=n(E)/n(S)
=6/1326
=1/221
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / ajay
the Probability of 2 Queen cards might be 0,1,2.
so, the equation should be: (52/52)*(51/52)*(50/52)
| Is This Answer Correct ? | 0 Yes | 3 No |
36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the rest have shaken hands with at least one person in the set is a)12 b)11 c)13 d)18
The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
0 Answers Accenture, iNautix, Wipro,
in 8*8 chess board what is the total number of squares refer odel
The sum of the digits of a two digit number is 8.When 18 is added to the number, the digits are reversed. Find the number?
A ridge formed over Pacific Ocean was because of the intersection of two volcanoes. But in history it was written that it was not due to those volcanoes. It proves a contradictory to form the view that history will be proved wrong in the future.Inference?
why communication is considered as one of the pre-conditions of development ?
6:60::?:504
P is heavier than Q but lighter than R. Q is heavier than T. S is heavier than P but lighter than V. Who among them is the lightest? (a) V (b) S (c) T (d) R (e) None of these
If x + 8y = 20 and x = -3y, then y =
There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles .
25 Answers 3i Infotech, Canara Bank, Geodesic, Interlace, John Deere,
hello all,i had applie vizag steel plant enternce exam pattern,any body plse send me my mailid madanmca.2008@gmail.com,
lowest common factor of 24 , 36 and 40 is?