Ques:- There are 4 people in a closed room and you are waiting outside to enter into the room. You can enter only when one of them opens the door. The probability that somebody will open the door is 1/2. Now what is the probability that the door will be opened so that you can go inside?
Recent Answer : Added by Ashwin GB On 2021-07-08 16:28:54:
The probability that no one opens the door would be
0.5×0.5×0.5×0.5= 0.0625
So, the probability that atleast one opens the door is 1-0.0625= 0.9375
Ques:- In a sports contest there were m medals awarded on n successive days (n > 1). 1. On the first day 1 medal and 1/7 of the remaining m – 1 medals were awarded. 2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so on.On the nth and last day, the remaining n medals were awarded.How many days did the contest last, and how many medals were awarded altogether?
Recent Answer : Added by DK BOSS On 2021-07-21 15:26:11:
Ques:- A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are drawn what is the probability that one is yellow and two are red?
Ques:- 40.83 x 1.02 x 1.2 = ?
Recent Answer : Added by Gowtham On 2022-09-15 16:37:20:
There should be 5(2+2+1) decimal places in the answer and the decimal place should end with 2(3*2*2=12) so the correct answer is a, no need for calculator. You can rule out all the other options because it does not satisfy this condition.
Ques:- Can you tender a one rupee note in such a manner that there shall be total 50 coins but none of them would be 2 paise coins.?
Ques:- Find the nearest to 25268 which is exactly divisible by 467?
Ques:- If you get job in this company what you will do for this company?
Ques:- Walking with 4/5 of my usual speed, I miss the bus by 5 minutes. What is my usual time?
Recent Answer : Added by Pramod verma On 2021-01-30 01:20:23:
20 minutes
Ques:- What is the length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high?
Recent Answer : Added by jeevi sireesha On 2022-11-29 17:06:56:
17
Ques:- The sum of four consecutive even numbers is 292. Evaluate the smallest number?
Recent Answer : Added by priyanhu On 2022-04-02 07:00:15:
Thanq saddha
Ques:- Reactions on a situation ( Given at that time)
Ques:- Rs.1500 is divided into two parts such that if one part is invested at 6% and the other at 5% the whole annual interest from both the sum is Rs.85. How much was lent at 5%?
Ques:- Are you willing to work overtime? Nights? Weekends?
Ques:- What is my goal in this industry?
Ques:- If 2x + y = 10 and x = 3, what is x – y
Recent Answer : Added by BRIAN WACHEMBA On 2021-10-12 12:52:53:
X-Y=-1
Ques:- Describe a problematic situation and how you solved it?
Ques:- In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Recent Answer : Added by Admin On 2022-09-29 18:42:28:
Total number of pairs is NC2^{N}C_2NC2. Number of pairs standing next to each other = N. Therefore, number of pairs in question = NC2^{N}C_2NC2 – N = 28/2 = 14. If N = 7,
7C2 – 7 = 21 – 7 = 14….
N =7
Ques:- A positive number when decreased by 2 is equal to 15 times the reciprocal of the number. What is the number ?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:35:
Let the number be x.
So x-2 =15/x, or
x^2–2x-15=0, or
(x-5)(x+3)=0
Hence x = 5 or -3.
Check: When x=5, 5–2=3 which is 15/5=3.
When x=-3, -3–2=-5 which is 15/-3=-5.
The number is 5 or -3.
Ques:- You have to draw 3 concentric circles with a line passing through their center without lifting hand.
Recent Answer : Added by rishabh On 2021-05-06 12:40:57:
just will draw the line first and then draw three concentric circles
Ques:- Have you ever slipped any schedule
Ques:- Tell about urself and about the resume etc
Ques:- If time at this moment is 9 P.M., what will be the time 23999999992 hours later?
Ques:- Steam is a vapour or a gas ?
Ques:- The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number?
Recent Answer : Added by Priya On 2022-05-17 09:06:45:
270
Ques:- Express a speed of 36 kmph in meters per second?
Recent Answer : Added by Anjum Parveen On 2022-03-09 16:31:40:
s=36kmph
in meter per second is=36*5/18=>10
Ques:- What is the number of zeros of the product of the first 100 numbers ?
Recent Answer : Added by Admin On 2020-05-17 12:05:49:
24.
exp: 0 is formed by multiplying 5 with 2. so first we find
how many 5’s and 2’s are there in 100!.
No of 5’s : 100/5=20/5=4/5.
20 +4 =24.
No of 2’s : 100/2=50/2=25/2=12/2=6/2=3/2=1/2.
50 +25 +12 +6 +3 +1.
It has 24 5’s and 2’s.
so the no. of zeros=24.
Ques:- Sell me this stapler?(this pencil?this clock?or some other object on interviewer?s desk).
Ques:- Whats your name and why you join this company?
Ques:- You have 50 white beads and 50 black beads and you MUST put all of the beads into two bins (50 beads in each), how do you maximize your chance of choosing a white bead (from either bin)
Ques:- CMC not good paymasters. Can you work with low salary?
The probability that no one opens the door would be
0.5×0.5×0.5×0.5= 0.0625
So, the probability that atleast one opens the door is 1-0.0625= 0.9375