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 |
Find the ratio of the areas of the regular hexagons inscribed in and circumscribed around a circle of radius 10cm.
1. Profit and loss problem.. Two mercants sold a good of worth Rs 1000 from which one merchant A got profit from selling prices and merchant B got profit form cost price and profit for both is 25% what is difference amount.? 2.5lts solution bottles in which 4 lts of solution is filled in which 15 % of salt is mixed,1.5 lits solution is fell out and it is filled with water how much of salt content is present..? 3.Square of 21 cms and bull was tied at corner with rope of 7 cms how much area it can graze... 4.A and B can do a work 15 and 20 days respectively form which A as done half of the work and then b joind then it done 1/20th work how much many days in which a complted work which left by B.
20) There are certain number of hats and gloves in a box. They are of 41 red, 23 green, 11 orange. Power gone. But a woman can differentiate between hats and gloves.How many draws are required to obtain a pair of each color.
please send the marketing aptitude,computer knowldege for sbi clerical exam
1 Answers State Bank Of India SBI,
a cylinder ingot 6cms in diameter and 6 cms in height is and spheres all of the samesize are made from the material obtained.what is the diameter of each sphere?
If the simple interest is 10.5 % annual and compound interest is 10 % annual, compounded annually, find the difference between the interests after 3 years on a sum of Rs. 1,000.
The average of 4 consecutive even numbers is 27. What is the largest number?
A new apartment complex purchased 60 toilets and 20 shower heads. If the price of a toilet is three times the price of a shower head, what percent of the total cost was the cost of all the shower heads?
6 women can do 75 units of work in 8 days by working 5hrs/day. In how many days can 4 women do 30 units of work by working 8hrs/day ?
Find the next number in the series 1, 3 ,7 ,13 ,21 ,31?
there are 2 guards Bal and Pal walking on the side of a wall of a wearhouse(12m X 11m) in opposite directions. They meet at a point and Bal says to Pal " See you again in the other side". After a few moments of walking Bal decides to go back for a smoke but he changes his direction again to his previous one after 10 minutes of walking in the other(opposite) direction remembering that Pal will be waiting for to meet.If Bal and Pal walk 8 and 11 feet respectively, how much distance they would have travelled before meeting again.
What should come in place of the question mark (?) in the following letter AC FH KM PR ? (a) VW (b) UX (c) UW (d) TV (e) None of these