Ques:- There are 4 people in a closed room and you are waiting outside to enter into the room. You can enter only when one of them opens the door. The probability that somebody will open the door is 1/2. Now what is the probability that the door will be opened so that you can go inside?
Recent Answer : Added by Ashwin GB On 2021-07-08 16:28:54:
The probability that no one opens the door would be
0.5×0.5×0.5×0.5= 0.0625
So, the probability that atleast one opens the door is 1-0.0625= 0.9375
Ques:- How many hours a week you want to work?
Ques:- Out of 10 persons working on a project, 4 are graduates. If 3 are selected, what is the probability that there is at least one graduate among them?
Recent Answer : Added by Admin On 2022-09-28 18:37:01:
Out of 10 persons, 4 are graduates; so, (10 – 4) = 6 are under-graduates.
If there is no restriction, any three can be chosen from the ten in (10C3) = 120 ways.
Now, if all three chosen are under-graduates; it can take place in (6C3) = 20 ways.
Therefore, the probability that there will be no graduate among the three chosen = (20 / 120) = (1 / 6).
Therefore, the probability that there will be at least one graduate among the three chosen = {1 – (1 / 6)} = (5 / 6) = 0.8333.
Ques:- If there are 2 wheelers and 4 wheelers parked in a school located at the heart of the city, find the number of 4 wheelers parked there if there were 58 wheels are parked there.
Recent Answer : Added by gkt On 2021-11-09 15:53:15:
total no of 4 wheelers: 40
total no of 2 wheelers: 18
Ques:- Three sets of English, Mathematics and Science books containing 336, 240 and 96 books respectively have to be stacked in such a way that all the books are stored subject wise and the height of each stack is the same. Total number of stacks will be
A. 7
B. 14
C. 21
D. 28
Recent Answer : Added by Durgesh On 2022-09-15 16:36:52:
14
Ques:- Please Introduce yourself
Ques:- If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?
Recent Answer : Added by Subham Hazra On 2022-08-24 17:03:46:
Ques:- How do you feel about those who bend the rules or take acasual attitude about procedure?
Ques:- A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Recent Answer : Added by George On 2021-06-10 07:10:11:
total distance to travel the end of the train = 360 + 140 = 500 m
speed of train 45000m/60min = 750m/min or 750m/60sec
(500m*60sec)/750m=40sec the time will take to pass
Ques:- Worked experience and personal.
Ques:- opposite to ESSENTIAL?
Recent Answer : Added by Admin On 2020-05-17 12:01:22:
DISSENTIAL
Ques:- WHAT IS THE DIFFERENCE MARKETING AND SALES ?
Ques:- How is my grandmother’s only child’s husband’s mother related to me ?
Recent Answer : Added by Maha On 2022-08-14 16:32:29:
Paternal Grandmother
Ques:- Which person you admire most in your family and why?
Ques:- What is your typical way of dealing with conflict?
Ques:- A boy travels in a scooter. After covering 2/3rd of the distance, the wheel got punctured. He covered the remaining distance by walking. Walking time is twice of the time taken in scooter. How many times the riding speed is of the walking speed?…
Ques:- The next number in the series 0, 7, 26, 63 is
A. 124
B. 148
C. 195
D. 255
Recent Answer : Added by Admin On 2020-05-17 12:03:19:
( A ) 124
Ques:- How do you feel about working in extreme weather conditions all year round?
Ques:- If you come onboard, give me a general idea of what your first overall tasks will be as far as starting a quality effort.
Ques:- A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Find out the speed of river.
Recent Answer : Added by Admin On 2020-05-17 11:59:48:
6 miles per hour…….
actually hat fell when they were 1 mile away from starting
and total time hat takes to travel to the starting point is
10 minutes ( 5 + 5 ).so, 1 miles per 10 minutes thats why 6
miles per hour
Ques:- A sum of money deposited at C.I. amounts to Rs.2420 in 2 years and to Rs.2662 in 3 years. Find the rate percent?
Ques:- 2 men are walking towards each other at constant speeds.A train starting at one end crosses the first man in 18 seconds. After 10 minutes it meets the other man and crosses him in 12 seconds.(i am not sure of the values).Find the time when the 2 …
Ques:- How does this position compare with others you’re applying for?
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Ques:- The greatest number of four digits that have 144 for their HCF is?
Recent Answer : Added by Ndono Stanley On 2022-03-09 16:40:01:
9936
Ques:- Joe started from Bombay towards Pune and her friend julie in opposite direction. they met at a point . distance traveled by joe was 1.8 miles more than that of julie.after spending some both started there way. joe reaches in 2 hours while julie in 3.5 hours.Assuming both were traveling with constant speed. What is the distance between the two cities.
Ques:- Why has call centers come to india,why dont they be in foreign cuntries?
Ques:- Can you tell me about a situation where you used your imaginative skills to solve a very difficult problem?
The probability that no one opens the door would be
0.5×0.5×0.5×0.5= 0.0625
So, the probability that atleast one opens the door is 1-0.0625= 0.9375