Ques:- Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.
Recent Answer : Added by Admin On 2022-09-28 18:05:55:
Let A, B and C be the three 6-faced dice.
Then, according to the question,
Since two dices has to be equal, that value can be any of the 6 faces, i.e., 6C1 cases.
Now for each case, 2 equal dices can be selected from 3 dices in 3C2 i.e., 3 ways.
And for each of the above, the third dice can have any of the 5 remaining faces
The possible outcomes are P(A)=61,P(B)=61,P(C)=65,P(A)=61,P(B)=65,P(C)=61 and P(A)=65,P(B)=61,P(C)=61
Hence the required probability = 61×61×65×6×3=21690=125
Ques:- The ratio of two numbers is 2:3 and the sum of their cubes is 945. What is the difference of number ?
Recent Answer : Added by Preet On 2021-08-10 15:21:38:
Let numbers be 2x, 3x
Given: (2x)^3 + (3x)^3 = 945
8x^3 + 27x^3 = 945
x = 3
Difference between numbers = 3x – 2x = x
Hence difference = 3
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Ques:- Eight persons – P, Q, R, S, T, U, V and W are sitting around a circular table. S is to the immediate right of W. V is not next to either R or T. W is to the immediate right of T, who is sitting opposite to R. U and W are sitting opposite to each other. Who is sitting two places to the right of W?
Recent Answer : Added by Rahemin Sheikh On 2022-11-11 15:50:52:
q
Ques:- In june a baseball team that played 60 games had won 30% of its game played. After a phenomenal winning streak this team raised its average to 50% .How many games must the team have won in a row to attain this average?
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Ques:- Find the odd man out:
41, 43, 47, 53, 61, 71, 73, 81
A. 81
B. 73
C. 71
D. 61
Recent Answer : Added by Makeshkumar.M On 2022-08-14 16:46:39:
81
Ques:- What is RAS
Recent Answer : Added by Admin On 2020-05-17 12:04:07:
Remote Access Service
Ques:- The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is:
Recent Answer : Added by Vanapalli Tarun Veera Venkat Siva On 2021-11-13 11:02:16:
(130+x)/30=(45×5/18)
245 meters
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Ques:- If the area of circle is 616 sq cm thenWhat is its circumference?
Recent Answer : Added by Meghana.N On 2021-08-05 17:35:31:
Answer:50.24
Explanation:
Area of a circle =π*r*r
616=π*r*r
r*r= 616÷3.14
r*r =196
r =13
Circumference of a circle= 2*π*r
=2*π*13
=16*3.14=50.24
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Ques:- A train running at the speed of 60 km/hr crosses a pole in 9 sec. What is the length of the train?
Recent Answer : Added by Solver On 2021-08-28 11:27:19:
speed = distence / time
60km/hr=distance / 9 sec
km / hr to m / s==> 60*1000 / 1* 3600 = 16.667
16.667*9 = distance
150 m is the answer
Ques:- Eighteen years ago, a father was three times as old as his son. Now the father is only twice as old his son. Then the sum of the present ages of the son and the father is:
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Ques:- I am a MBA graduate. I have experience in Customer Service.How do you manage your own time and objectives?
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