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:- Why u have low percentage in ur first year,while good marks in other years??
Ques:- A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?
Recent Answer : Added by bhawanisej On 2022-09-15 16:36:22:
when know that 13 is factor of 39 so it will also not be able to divide it differently. so the remainder will be same 20 but as we know that 20 is greater then 13 so we can divide it once again and in the casE of 13 the remainder will be 20-13=7
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Ques:- In a mixture of 60 liters, the ratio of milk and water is 2:1. What amount of water must be added to make the ratio of milk and water as 1:2?
Recent Answer : Added by divya On 2022-01-08 16:06:09:
60 liter
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Ques:- A train travelled from station P to Q in 8 hours and came back from station Q to P is 6 hours. What would be the ratio of the speed of the train while traveling from station P to Q to that from station Q to P?
Recent Answer : Added by Sahil On 2021-08-03 15:59:07:
Ratio: 3/4
Ques:- If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists r required to make 25 paintings using 25 canvases in 25 days?
Ques:- Tell me the ways you can choose 3 desserts from a menu of 10?
Recent Answer : Added by DIXITH On 2022-11-21 15:54:35:
10C3 = 120
Ques:- In a can, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 8 litres of milk the can would be full and ratio of milk and water would become 6 : 5. Find the capacity of the can?
Recent Answer : Added by N DHANAVEENA On 2021-10-19 17:55:00:
Ans-44
4x+8=6Y
5X=5Y
X=Y
FROM EQ 1
2X=8
X=4
6Y+5Y=11*4=44
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Ques:- The prob of finding the parking slot occupied is 1/3. U find it empty for 9 consecutive days. Find the prob that it will be empty on the 10th day.
Ques:- Low temperature at the night in a city is more than 1/2 high as higher temperature are 100. Then What is low temperature
Recent Answer : Added by Sanjeev Singh kushvaha On 2021-08-06 04:58:04:
150
Ques:- Two cylinders are of the same height. Their radii are in the ratio 1: 3. If the volume of the first cylinder is 40 cc. Find the volume of the second cylinder?
Ques:- If a light flashes every 6 seconds, how many times will it flash in ? of an hour?
Recent Answer : Added by Admin On 2022-09-29 15:41:29:
451 times.
Explanation: There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will
flashes 451 times in ¾ of an hour.
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Ques:- If Log2 x – 5 Log x + 6 = 0, then what would the value / values of x be?
Ques:- Find out the wrong number in the series:
7, 8, 18, 57, 228, 1165, 6996
A. 228
B. 57
C. 18
D. 8
Recent Answer : Added by Vishwanath On 2021-10-07 15:41:56:
Ans : 228
7
(7*1)+1=8
(8*2)+2=18
(18*3)+3=57
(57*4)+4=232 [ given 228 ] odd
(232*5)+5=1165
(1165*6)+6=6996
Ques:- X, Y and Z started a business with capitals of Rs. 8000, Rs. 10000 and Rs. 12000 respectively. At the end of the year, the profit share of Y is Rs. 1500. The difference between the profit shares of X and Z is?
Recent Answer : Added by Roop On 2021-09-18 16:12:08:
Profit ratio will be : 4:5:6
5x=150
X=300
X share is 1200
Y share is 1800
Difference will be = x-y =600
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Ques:- We are sitting across a round circular table ( Me and you ) and we start a game of taking trns in placing a coin on the table ( i.e. I put one coin and then you put one coin and so on ) the last person who is not able to put the coin on table losses.If you start this game who will win this game ? And what strategy you will apply to increase your probability of winning this game. Assumptions Size of table is much larger then the size of coin Both of us have infinite supply of same sized coins.
Ques:- A basket has 5 apples and 4 oranges. Three fruits are picked at random. The probability that at least 2 apples are picked is -.
Recent Answer : Added by Rajeswari Suresh On 2021-10-10 19:03:43:
5c2*4c1/9c3 +5c3/9c3=25/42
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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