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:- ?Ghasiram Kotwal? was written by
Ques:- Do you know anyone who works for us?
Ques:- in base representation for a rupee 100 paise,then base 8 representation what is rupee value .
Recent Answer : Added by Admin On 2020-05-17 11:59:59:
100/8=12-4
12/8=1-4
ans:144
Ques:- 10,9,60,90,70,66,?
Recent Answer : Added by Babuji On 2020-09-29 04:17:01:
ans 810 i think
Ques:- What do you for when you hire people?
Ques:- If you throw a red stone into the blue sea what it will become?
Recent Answer : Added by Mubeena kabeer On 2021-04-15 17:10:50:
A wet stone
Ques:- Any Recent Movie you Saw Tell Me Story in Short ?
Ques:- Four sisters- Purva, Durga, Parvati and Maya are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister has Rs. 32. What was the amount with Uma at the end of the second round?
Ques:- Are you interested to work in service sector?
Ques:- IN which year planning commission was set up in Independent India
Ques:- A and B do a work with 5 days, A and C in 6 days, B and C in 20 days.If A do alone how many days it will take?
Recent Answer : Added by vinita On 2022-08-14 16:32:01:
8 days
Ques:- A building with height D shadow up-to G. A neighbor building with what height shadows C feet.
Ques:- The H.C.F. of 0.54, 1.8 and 7.2 is
A. 0.18
B. 0.018
C. 1.8
D. 18
Recent Answer : Added by vishakha yadav On 2022-05-17 08:54:24:
0.18
Ques:- In a fraction, if 1 is added to both the numerator at the denominator, the fraction becomes 1/2. If numerator is subtracted from the denominator, the fraction becomes 3/4. Find the fraction.
Recent Answer : Added by bharath On 2022-09-26 17:09:46:
3/7
Ques:- Tell about mumbai ?
Ques:- A MAN’S SALARY IS INCREASED BY 1200 ,TAX IS DECREASED FROM 12% TO 10% BUT HE PAYS SAME AMOUNT AS TAX . WHAT IS THE PREVISIOUS SALARY?
Recent Answer : Added by Admin On 2020-05-17 12:04:31:
Let us consider previous salary as a ‘X’ then
0.12*X=0.10*(X+1200)
0.02X=120
X=120/.02=6000
X=6000
His previous salaray was 6000
Ques:- How do you describe yourself as a person?
Ques:- The sum of all the prime numbers from 1 to 20 is
A. 75
B. 76
C. 77
D. 78
Recent Answer : Added by nikita mane On 2022-08-14 16:32:25:
77
Ques:- What routing protocol uses the most bandwidth?
Ques:- 1/(10 power 18) – 1/(10 power 20) = ?
Recent Answer : Added by Admin On 2020-05-17 11:59:42:
99/1020
Ques:- A circle and a rectangle have the same perimeter. The sidesof the rectangle are 18 cm and 26 cm. What will be the areaof the circle?
Recent Answer : Added by Admin On 2020-05-17 12:03:54:
perimeter of rectangle = 2(l+b)
given l abd b as 18 cm and 26 cm
therefore perimeter of rectangle = 2(44)
perimeter of circle = 2*pi*r
given 2*pi*r=2(l+B)
i.e, 2*(22/7)*r= 2(44)
(22/7)*r=44
r=14 cms
area of the circle = pi*r*r
=(22/7)*14*14
=616 sqcm is the answer
Ques:- Give an answer with an example how i should answer for tell about yourself?
Ques:- TELL ME THE STORY OF THE LAST MOVIE U SAW?
Ques:- X and Y start a business jointly. X invests Rs.16000 for 8 months and Y remains in the business for 4 months. Out of the total profit Y claims 2/7th share. How much money is contributed by Y?
Recent Answer : Added by Admin On 2022-09-29 18:33:42:
Ques:- You’ve got someone working for you for seven days and a gold bar to pay them. The gold bar is segmented into seven connected pieces. You must give them a piece of gold at the end of every day. If you are only allowed to make two breaks in the gold bar, how do you pay your worker?
Recent Answer : Added by Sri On 2022-03-18 09:18:22:
Ques:- There are four prime numbers written in ascending order of magnitude. The product of the first three is 7429 and of the last three is 12673. Find the fourth number?
Recent Answer : Added by Stella Alexander On 2022-09-02 17:04:20:
17,19,23,29
Ques:- Find the odd man out:
835, 734, 642, 751, 853, 981, 532
A. 981
B. 853
C. 751
D. 532
Recent Answer : Added by anuj singh On 2022-05-17 08:55:01:
Ques:- A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?
Ques:- In a business, A and C invested amounts in the ratio 2 : 1, whereas the ratio between amounts invested by A and B was 3 : 2. If Rs.1,57,300 was their profit, how much amount did B receive?
A. Rs. 24,200
B. Rs. 36,300
C. Rs. 48,400
D. Rs. 72,000
Recent Answer : Added by Raimi Rafiu On 2022-09-15 16:36:49:
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.