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:- What exceptional you can do than others ?
Ques:- I AM SKILLFULL TO HANDLED THIS WORK VERY EFFECTIVELY
Ques:- Surface area of two spheres are in the ratio 1:4 what is the ratio of their volumes?
Ques:- A and B are started a business in partnership investing Rs.20,000 and Rs.15,000 respectively. After six months, C joined them with Rs.20,000. What will be B’s share in the total profit of Rs.25,000 earned at the end of 2 years from the starting of the business?
A. Rs. 7000
B. Rs. 7500
C. Rs. 9000
D. Rs. 9500
Recent Answer : Added by Chathura On 2022-05-17 09:09:31:
A = 20k x 2y, B = 15k x 2y, C = 20k x 1.5y => 100Ky
B contribution = (15k x 2y) /100ky
B will get 0.3 from 25k which is 7.5k = 7500
Ques:- Why do you expect this much salary?
Ques:- Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the sum for a period of eight years for the same rate, the total intrest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.
Ques:- TYPE OF WELDING
Ques:- What kind of Ideal job you are looking for?
Recent Answer : Added by DK BOSS On 2021-07-21 15:27:16:
i am looking for a cyber security expert job
Ques:- A and B entered into a speculation. A put in Rs.500 and B put in Rs.450. At the end of 4 months A withdrew half of his capital and at the end of 6 months B withdrew half of his capital, then C entered with a capital of Rs.700. At the end of 12 months, in what ratio would the profit be divided?
A. 80 : 81 : 84
B. 80 : 81 : 85
C. 81 : 81 : 84
D. 81 : 81 : 85
Recent Answer : Added by Admin On 2022-09-23 18:55:36:
A. 80 : 81 : 84
Ques:- As you said, internet surfing is your hobby. Which site do you surf mostly?
Ques:- Two cars are 15 kms apart. One is turning at a speed of 50kmph and the other at 40kmph . How much time will it take for the two cars to meet?
Recent Answer : Added by Yogi On 2021-02-11 16:42:58:
1.5 hr
Ques:- The length of rectangle is thrice its breadth and its perimeter is 96 m, find the area of the rectangle?
Ques:- Which greatest number will divide 3026 and 5053 leaving remainders 11 and 13 respectively?
A. 15
B. 30
C. 40
D. 45
Recent Answer : Added by Vijay Vinod On 2022-09-16 14:52:15:
Answer is 45
First we need to subtract those reminders from the respective numbers, then we have to find the hcf of two numbers(numbers got from the subtraction) then you will get the answer.
So,
After subtraction you will get
3026-11 = 3015
5053-13 = 5040
HCF of these two numbers
5 | 3015 5040
3 | 603 1008
3 | 201 336
| 67 112
We can’t find a common diviser since 67 is a prime number
So the HCF = 5 * 3 * 3
= 45
5*3*3 = 45
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:- salary is ‘s’ per month,’x’% of salary is given as bonus, if 3 months salary is s1,s2 & s3 then what is his salary.
Recent Answer : Added by Admin On 2020-05-17 11:59:58:
s1(1+x/100)+s2(1+x/100)+s3(1+x/100)
Ques:- A train covered x km at 40 kmph and another 2x km at 20 kmph. Find the average speed of the train in covering the entire 3x km.
Recent Answer : Added by Rakesh Keshri On 2021-09-07 17:39:41:
Recent Answer : Added by Shaik Mohammad Javeed On 2021-11-18 17:15:42:
C)1440
2*2=4
4*3=12
12*4=48
48*5=240
240*6=1440
Ques:- If the sides of a cube are in the ratio 4:3. What is the ratio of their diagonals?
Ques:- Tell me about a situation where you were aware of a serious mistake made by a colleague and what did you do about it?
Ques:- X, Y and Z can do a work in 6, 8 and 12 days respectively doing the work together and get a payment of Rs.1800. What is Y’s share?
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:- DEFINE MYSELF
Ques:- What is your ideal company or workplace?
Ques:- Why do you want to relocate?
Ques:- A cyclist drove one kilometer, with the wind in his back, in three minutes and drove the same way back, against the wind in four minutes. If we assume that the cyclist always puts constant force on the pedals, how much time would it take him to drive one kilometer without wind?
Recent Answer : Added by Zwelethu Nzulu On 2021-08-28 11:27:00:
3 minutes
Ques:- What three Specific Job Positions do you target from the Company?
Ques:- Two trains of length 100 m and 200 m are 100 m apart. They start moving towards each other on parallel tracks, at speeds 54 kmph and 72 kmph. After how much time will the trains meet?
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