Ques:- There are 6 couples (12 people). 4 people are selected at random. What is the probability that exactly one couple will be selected ?
Recent Answer : Added by An On 2022-09-15 16:37:14:
Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021
Ques:- Why do you left your job?
Ques:- Sachin is younger than Rahul by 4 years. If their ages are in the respective ratio of 7:9, how old is Sachin?
Recent Answer : Added by Davide On 2021-08-10 09:39:24:
Sachin is 14 years old whereas Rahu is 18 years old.
Ques:- There is a 5digit no. 3 pairs of sum is eleven each. Last digit is 3 times the first one. 3 rd digit is 3 less than the second. 4 th digit is 4 more than the second one. Find the digit.
Recent Answer : Added by Admin On 2020-05-17 11:59:40:
let first digit be ‘X’
then 5th digit is ‘3X’
let 2nd digit be ‘Y’
then 3rd digit is ‘Y-3’
and 4th digit is ‘Y+4’
then the no is ‘(X)(Y)(Y-3)(Y+4)(3X)’
from the above we can say 3X<=9
so X<=3 and any of the digit in the number is <=9
and also given that 3 pairs sum is 11...
so make trial and error..
if X=1...any of the no is 10 which is wrong trial....
if X=2...then let Y+4=9 ==> Y=5
then no is 25296
first pair 2+9=11
second pair 2+9=11
third pair 5+6=11
now the answer is 25296
Ques:- P?s father is Q’s son. M is the paternal uncle of P and N is the brother of Q. How is N related to M ?
A. Brother
B. Nephew
C. Cousin
D. Data inadequate
E. None of these
Ques:- Ankaleshwar is famous for:
A. Coal mines
B. Gold mines
C. Iron ore
D. Petroleum
Recent Answer : Added by Rabiya On 2021-08-17 14:47:33:
Petroleum
Ques:- The following question asked at Infosys campus recruitment held at Pragathi. If 1>= y > x and xy=z.which of the following is not true? i)z>0 ii)x=z iii)y=z iv)z>y
Recent Answer : Added by Admin On 2020-05-17 12:01:07:
1>=y>x => y belongs to (-infinity,1]
x belongs to (-infinity,y)
if both x and y are negitive z can be greater than zero and
can be greater than y(1 and 4 are true)
if y equals 1 then x can be equal to z(2 is true)
therefore y=z is not true for any value of x and y
Ques:- Explain about the future of computer and IT students?
Ques:- Train P crosses a pole in 30 seconds and train Q crosses the same pole in one minute and 15 seconds. The length of train P is three-fourths the length of train Q. What is the ratio of the speed of train P to that of train Q?
Recent Answer : Added by Prathyush On 2021-11-13 15:43:18:
Ques:- What was the percentage of money circulation in terms of 500 and 1000 Rupee note in India before 8th November?
Ques:- Can you share a few of your aspirations beyond this job?
Ques:- What was the last major problem that you were confronted with? What action did you take on it?
Ques:- Number Series 3,18,4,24,5,30,?
Recent Answer : Added by Rohini kale On 2021-12-23 16:25:58:
6,36
Ques:- How would you convince your customer?
Ques:- Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?
Recent Answer : Added by shareef shaik On 2021-06-16 20:53:13:
1261
Ques:- A box containing 10 identical compartments has 6 red balls and 2 blue balls.If each compartment can hold only one ball,then what will be the number of possible arrangements?
Ques:- Three pipes of same capacity can fill a tank in 8 hours. If there are only two pipes of same capacity, the tank can be filled in?
Recent Answer : Added by M.N On 2021-04-05 14:58:46:
3×8=24=2xt ===> t=12hours
Ques:- A local inner class may be final or abstract ?
Ques:- Do you have any blind spots?
Ques:- A cistern which could be filled in 9 hours takes one hour more to be filled owing to a leak in its bottom. If the cistern is full in what time will the leak empty it?
Recent Answer : Added by Sonali On 2020-11-17 15:27:52:
90 hours
Ques:- In a three digit number, the hundred digit is 2 more than the tens digit and the units digit is 2 less than the tens digit. If the sum of the digits is 18, find the number?
Recent Answer : Added by TUMWINE PETER On 2021-11-13 11:02:26:
(x+2)+(x)+(x-2)
X+2+x+x-2=18
3x=18
X=6
The 3digit number is 864
Ques:- Mullaperiyar dam is a disputable issue between?
Ques:- There are 6561 balls out of them 1 is heavy. Find the minimum number of times the balls have to be weighed for finding out the heavy ball.
Recent Answer : Added by divyansh On 2021-09-22 16:55:55:
Answer=8
Ques:- Why do you consider yourself sutiable for the post?
Ques:- Why you feel proud of your work?
Ques:- What can you do for us that someone else can’t?
Ques:- How did you know about this vacancy?
Ques:- Why do you want to work at our company?
Ques:- a student got 70% in one subject,80% in other.to get overall 75% how much he should get in third subject
Recent Answer : Added by Admin On 2020-05-17 12:00:01:
75%
Ques:- If A lends Rs.3500 to B at 10% per annum and B lends the same sum to C at 11.5% per annum then the gain of B in a period of 3 years is?
Recent Answer : Added by LYNETTE On 2021-11-09 15:53:46:
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Prob(choosing two people who are a couple from 6 couples) = 1/6
We have 5 couple left (10 people)
Prob(choosing a person A from 10 people) = 1/10
Prob(choosing 1 person who is not a couple of A) = 1/8
Prob(choosing 4 people that has exactly one couple) = 1/6*1/8*1/10 = 0.0021