Coding dojo Interview Questions, Process, and Tips

Ques:- A disc is spinning on a spindle, and you don’t know which way. You are given a set of pins. Describe how you would use them to determine which way the disc is spinning?
Ques:- A cistern is filled by a tap in 3 1/2 hours. Due to leak in the bottom of the cistern, it takes half an hour longer to fill the cistern. If the cistern is full how long will it take the leak to empty it?
Ques:- Will you be able to stay away from your hometown?
Ques:- What was the percentage of money circulation in terms of 500 and 1000 Rupee note in India before 8th November?
Ques:- Given n people live in n houses and at some instant all of them disappear and reappear in some other house. What is the probability that no two meet each other.
Ques:- A contractor agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily. After 90 days, only 2/7 of the work was completed. Increasing the number of men by ________ each working now for 10 hours daily, the work can be completed in time.
Recent Answer : Added by Akshay On 2022-03-09 16:46:00:

225

Ques:- Who is your role model & why?
Ques:- 20% of (A) 6 litre solution and 60% of (B) 4 litre solution are mixed. What percentage of the mixture of solution is A?
Recent Answer : Added by Jack On 2023-04-21 15:58:12:

Mixture is 1.2 L of A + 2.4L of B which is 3.6L total. 1.2L / 3.6L = 1/3 (0.33)

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:- DEFINE MYSELF
Ques:- Hr asked aboout me
Ques:- What kind of writing have you done? For a group? For an individual?
Ques:- Do you have any experience in this industry?
Ques:- A boy has Rs 2. He wins or loses Re 1 at a time If he wins he gets Re 1 and if he loses the game he loses Re 1. He can loose only 5 times. He is out of the game if he earns Rs 5. Find the number of ways in which this is possible?
Recent Answer : Added by Admin On 2022-09-28 17:58:34:

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0L -> 1 way
1L -> 3 ways
2L -> 7 ways
3L -> 4 ways
4L -> 1 way
total 16 ways

Ques:- What should i say if anybody ask me to say about me which is not in my resume.
Ques:- Which one of the following animals stores water in the intestine?
A. Moloch
B. Uromastix
C. Zebra
D. Camel
Recent Answer : Added by Racer On 2021-03-31 15:32:33:

Camel is the answer
Camel can store water for many days or months in there intestines

Ques:- The sum of all the prime numbers from 1 to 20 is
A. 75
B. 76
C. 77
D. 78
Recent Answer : Added by nikita mane On 2022-08-14 16:32:25:

77

Ques:- In a 3000 m race A reaches the goal 50 seconds earlier than B and beats C by 1000 m. If the speed of C is 8 m/sec, then what is the speed of B?
Recent Answer : Added by tej On 2022-08-14 16:31:01:

10m/sec

Ques:- A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on….. After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Recent Answer : Added by Biplab Nath On 2021-07-31 16:35:53:

Answer: 3121 gold coins
Let total no of coins be M
Let the disbursement D to each son:

D1 = 1 + (M – 1)/5 = (M + 4)/5
D2 = 1 + ( M – D1 -1)/5 = (D1) * 4/5
D3= (D2) * 4/5
D4= (D3) * 4/5
D5= (D4) * 4/5
Total disbursements to sons=
= ∑D= (M+4)*1/5[ 1+4/5+(4/5)(4/5)+ (4/5)(4/5)(4/5)+(4/5)(4/5)(4/5)(4/5) ]
= (2101/3125)*(M+4)
Thus balance left for daughters =M-{(2101/3125)*(M+4)}
=(1024M-8404)/3125
This balance should be a positive integer ( assuming M and all disbursements are full coins )
Thus 1024M-8404 should be a multiple of 3125….so….
1024M – 8404 = N*3125 where N is an integer
Using Python code:
n=int(input(“Enter num n: “))
X=int()
a=int()
a=0
X=’ ‘
for a in range(0,n+1):
a=a+1
X= (3125*a + 8404)/1024
if (3125*a + 8404)% 1024== 0:
print(X,a)
Enter num n: 10000
3121.0 1020
6246.0 2044
9371.0 3068
12496.0 4092
15621.0 5116
18746.0 6140
21871.0 7164
24996.0 8188
28121.0 9212
We get minimum value of N = 1021 and M = 3121 gold coins

Ques:- Why do you want to work in Night shift?
Ques:- Given two tables Student(SID, Name, Course) and Level(SID, level) write the SQL statement to get the name and SID of the student who are taking course = 3 and at freshman level.
Ques:- What animal best represents you and why?
Ques:- A 4 digit no may consist of the digits 6,2,7,5 where none of the nos are repeated.Find the possible no of combinations divisible by 36?
Recent Answer : Added by Admin On 2020-05-17 12:02:15:

no combinations is there because a number divisible by 36
also divisible by its divisors anu.sum of 4 digits=20,whis
is not multiple of 3.so it is cannot divisible by 3

Ques:- Finish the series : 5,6,7,8,10,11,14,..?
Recent Answer : Added by Admin On 2022-09-29 17:21:33:

In the given series 5,6,7,8,10,11,14…
There are two series
First is 5,7,10,14…
Second is 6,8,11….
First series
5+2=7
7+3=10
10+4=14
Second series
6+2=8
8+3=11
11+4=15
Hence complete series is 5,6,7,8,10,11,14,15…

Ques:- What are your outside interests?
Ques:- A ship started from port and moving with I miles per hour and another ship started from L and moving with H miles per hour. At which place these two ships meet?
Ques:- Why don’t you join your family business?
Ques:- Tell me about your achievements in last 5 years?
Ques:- M/N = 6/5 3M+2N = ?
Recent Answer : Added by Admin On 2020-05-17 11:59:21:

cannot be determined .

Ques:- Why do I want to move from a higher designation to a 1 level lower designation in a different company?
Recent Answer : Added by pankaj On 2022-05-17 09:08:20:

sorry this question is irrelevant.

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