1)You take a test, and 60% pass the first time and 40% fail.
The second time around,80% pass the test and 20% fail.
The third time, 90% pass and 10% fail.
a. What is the probability that you pass on the 2nd time?
b. What is the probability that you pass on the 3rd time?
c. What is the probability you fail?
- 2 Answers
- 16104 Views
- TCS, Winit, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / vinod
a.Passing in the 2nd attempt = Fail on first AND Pass in 2nd = 0.4*0.8=0.32 or 8/25.
b.Passing in the 3rd attempt = Fail 1st AND Fail 2nd AND pass 3rd = 0.4*0.2*0.9 = 0.072 = 9/125
c.Failing after 3 attempts = Fail 1st AND Fail 2nd AND Fail 3rd = 0.4*0.2*0.1 = 0.008 = 1/125
| Is This Answer Correct ? | 69 Yes | 3 No |
Four couples are going to the movie. Each row holds eight seats. Betty and Jim don't want to sit next to Alice and Tom. Alice and Tom don't want to sit next to Gertrude and Bill. On the otherhand, Sally and Bob don't want to sit next to Betty and Jim. How can the couples arrange themselves in a row so that they all sit where they would like?
I am the owner of a pet store. If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have? (Expalin in Detail) a.4 canaries and 3 cages b.3 canaries and 4 cages c.4 canaries and 5 cages d.None of the above
Find the values of each of the alphabets. N O O N S O O N + M O O N ---------- J U N E
21 Answers Bhel, CAT, IBM, Infosys, Mind Tree, Wipro,
Substitute digits for the letters to make the following addition problem true. W H O S E T E E T H A R E + A S ------------------- S W O R D S Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter H, no other letter can be 3 and all other H in the puzzle must be 3.
A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396. What is the sum of the three digits?
Mrs. F has invited several wives of delegates to the United Nations for an informal luncheon. She plans to seat her 9 guests ina row such that each lady will be able to converse with the person directly to her left and right. She has prepared the following list. Mrs. F speaks English only. Mrs. G speaks English and French. Mrs. H speaks English and Russian. Mrs. J speaks Russian only. Mrs. K speaks English only. Mrs. L speaks French only. Mrs. M speaks French and German. Mrs. N speaks English and German. Mrs. O speaks English only. How many distinct seating arrangements are possible? Give all possible seating arrangements. Note that ABCD and DCBA are the same.
Here is the family tree of Mr. RAHUL RAHUL | --------------------------------------------- | | | | RATISH YASH OM TRILOK | | ? -------- ------------------ | | | | | AMAR AMIT RAM HARSH ASHOK | | ----- ------- | | | | | How many children does Mr. TRILOK have?
foot is related to man in the same way hoof is related to...........
a pipe fill a tank in 3hrs.another pipe fill that same tank in 2hrs.if both pipe inserted in tank to fill it how timw it will take to fill?
14 Answers Infosys, Zycus Infotech,
The secret agent X emailed some code to his head office. They are "RADAR, LEVEL, ROTOR, REDIVIDER, MOTOR". But four of these five words have something in common and one is fake. Can you tell which one is fake? Ignore the fact that four of the code-words are of the same length.
There is puzzle with the word "CONSTANTINE" and exactly don't know the question if anybody knows the Q&A plz send it ahmed.basha.munna@gmail.com
i want to know tips if any one have any idea about interview at nielsen market research company
English 
