Ques:- 10 books are placed at random in a shelf. The probability that a pair of books will always be together is -.
Recent Answer : Added by Mahomed On 2021-08-24 15:05:46:
All books can be arranged in 10! ways. A single pair of books can be taken as a unit and arranged among the 8 others in 9! ways. The pair of books can also be interchanged and therefore rearranged in 2! ways. Thus the probability of the pair always being together is (9!*2!)/10!
Ques:- Thirty men take 20 days to complete a job working 9 hours a day. How many hour a day should 40 men work to complete the job?
A. 8 hrs
B. 7 1/2 hrs
C. 7 hrs
D. 9 hrs
Recent Answer : Added by 9074743593 On 2021-07-29 16:19:42:
7 1/2
Ques:- What would you do for us? What can you do for us thatsomeone else can't?
Recent Answer : Added by Kanishk Rathore On 2022-08-14 16:33:55:
Creative mind and innovative ideas is what I can offer to you. Please have a look at my work portfolio. I do not copy anyone’s work, I do not try to imitate the work of other creators. Gaining my inspiration from everyday life
Ques:- P and Q started a business with respective investments of Rs. 4 lakhs and Rs. 10 lakhs. As P runs the business, his salary is Rs. 5000 per month. If they earned a profit of Rs. 2 lakhs at the end of the year, then find the ratio of their earnings?
Ques:- About my last company. about project doing by me in diploma, about technical knowledge.
Recent Answer : Added by GAURAV WAGHELA On 2022-03-09 16:35:12:
Difference between 2 and 6 is = 4
Difference between 6 and 12 is = 6
Difference between 12 and 20 is = 8
Difference between 20 and 30 is = 10
Difference between 30 and 42 is = 12
Difference between 42 and 56 is = 14
So ne number will be with 16 Difference i .e 72
Therefore Answer will be 72
Ques:- Will you like to work for Walmart someday ?
Ques:- About hostel & my college
Ques:- 49 race cars and no two have the same speed. Now give you 7 tracks with equal length to find the 25th fastest car. At least how many races are needed.(no time recorder)
Ques:- Of the 50 researchers in a workgroup 40% will be assigned to Team A and the remaining 60% to Team B. However, 70% of the researchers prefer Team A and 30% prefer Team B. What is the least possible number of researchers who will not be assigned to the team they prefer?
A. 15
B. 20
C. 30
D. 35
Recent Answer : Added by Bob On 2022-08-14 16:29:34:
15
Ques:- If goods be purchased for Rs.840 and one-fourth be sold at a loss of 20% at what gain percent should the remainder be sold so as to gain 20% on the whole transaction?
Ques:- What is your Future Plans for the Company if Permanently Employed?
Ques:- Find the number WXYZ divisible by 36? i)let the digits be5,4,3,6 ?not in that order ii)sum of last two digits is 9 iii) sum of middle two digits is 7
Recent Answer : Added by Admin On 2020-05-17 12:02:19:
5436
Ques:- Have you ever worked for a foreign company before, outside your country?
Ques:- Two pipes X and Y can separately fill a tank in 12 and 15 minutes respectively. A third pipe Z can drain off 45 liters of water per minute. If all the pipes are opened, the tank can be filled in 15 minutes. What is the capacity of the tank?
Recent Answer : Added by mani On 2021-01-30 01:20:25:
540 liters
Ques:- If second no is twice the first no and first no is thrice the third no.Their avg is 20.Find the greatest no?
Recent Answer : Added by Admin On 2020-05-17 12:01:46:
let the third no be x ,
then the first no is 3x ,
second no is 2*3x ie 6x
average is (3x+6x+x )/3 = 20
10x/3 = 20
x= 60/10 = 6
third no is 6 , second is 6x = 36, first no is 3x = 18
largest no is 36 i.e second no
Ques:- Describe to me in detail a time when you took the initiative in a major project.
Ques:- Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?
Recent Answer : Added by shareef shaik On 2021-06-16 20:53:13:
1261
Ques:- . Which rights was described as the ?heart and soul of theconstitution? by Dr. B.R. Ambedkar?(1) Right to property(2) Right to equality(3) Right to freedom of religion(4) Right to constitutional remedies
Ques:- Past Experience, What can I bring to the Table, Why Tech Mahindra, etc.
Ques:- What is full form of INDIA
Ques:- If a and b are mixed in 3:5 ration and b and c are mixed in 8:5 ration if the final mixture is 35 liters, find the amount of b?
A. 13.34
B. 15.73
C. 16.73
D. 9.45
E. 5.3
Ques:- Mudit’s age 18 years hence will be thrice his age four years ago. What is Mudit’s present age?
Recent Answer : Added by DK BOSS On 2021-07-16 09:53:11:
Ans :15
X be a present age of mudit
After 18 year age of mudit is X+18
4 year ago age was X-4
As per question,
X+18=3(X-4)
X+18=3X-12
3X-X=18+12
2X=30
X=15
Ques:- Whatdid you do yesterday?
Ques:- Tell us about a problem you had with a co-worker and how you resolved it?
Ques:- X, Y and Z can do a piece of work in 24, 30 and 40 days respectively. They start the work together but Z leaves 4 days before the completion of the work. In how many days is the work done?
Recent Answer : Added by Admin On 2022-09-29 17:23:19:
One day’s work of A, B and C = (1/24 + 1/30 + 1/40) = 1/10.
C leaves 4 days before completion of the work, which means only A and B work during the last 4 days.
Work done by A and B together in the last 4 days = 4 (1/24 + 1/30) = 3/10.
Remaining Work = 7/10, which was done by A,B and C in the initial number of days.
Number of days required for this initial work = 7 days.
Thus, the total numbers of days required = 4 + 7 = 11 days.
Ques:- Ravi can do a piece of work in 30 days while Prakash can do it in 40 days. In how many days will they finish it together?
Recent Answer : Added by SHUBHAM PATIDAR On 2021-10-07 15:41:16:
Ravi do a work in 30 days
Prakash do a work in 40days
then both work together 1/30+1/40=70/1200
then solve values 120/7 is 17(1/7) days
Ques:- Please tell me about self?
Ques:- You r given a thermometer. What can u do by this without measuring the temperature?
All books can be arranged in 10! ways. A single pair of books can be taken as a unit and arranged among the 8 others in 9! ways. The pair of books can also be interchanged and therefore rearranged in 2! ways. Thus the probability of the pair always being together is (9!*2!)/10!