# Kerala state electricity board Interview Questions, Process, and Tips

Ques:- Are you Comfortable with the office time i.e 9:30 to 6:30?
Ques:- On a scale of one to ten, rate me as an interviewer?
Ques:- A mixture of 150 liters of wine and water contains 20% water. How much more water should be added so that water becomes 25% of the new mixture?
Ques:- Find the odd man out:
835, 734, 642, 751, 853, 981, 532
A. 981
B. 853
C. 751
D. 532

835,sum(digits)= 16
734 = 14
642=12
751= 13,
853=16,
981=18,
532=10

Ques:- In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. What is the speed of the boat in still water (in km/hr)?
Ques:- About my self, regarding customer service.
Ques:- Design an elevator system for a 100 story building. Address all issues, like number of elevators, speed of each (Not numerically), waiting times etc. There would be 100-200 people living/working on each floor.
Ques:- Do you have or know someone with pain?
Ques:- X is half good a work man as Y and together they finish a job in 14 days. In how many days working alone Y finish the job?

21 days

Ques:- About my self, working experience, general knowledge & Goals to be achieve.
Ques:- When i went to a call center she asked me. where u want to see after few years?
Ques:- What is the GDP growth of India?
Ques:- Present ages of X and Y are in the ratio 5:6 respectively. Seven years hence this ratio will become 6:7 respectively. What is X’s present age in years?

the ratio of present age of x:y is 5:6
And,we have to find the present age of x.
so,the present age of X is definitely will be multiple of 5.
X=35

Ques:- A polygon has maximum 1325 diagonals. How many vertices does it have?

The formula to find number of diagonals (D) given total number of vertices or sides (N) is

N * (N – 3)

D = ———–

2

Using the formula, we get
1325 * 2 = N * (N – 3)
N2 – 3N – 2650 = 0

Solving the quadratic equation, we get N = 53 or -50

It is obvious that answer is 53 as number of vertices can not be negative.

Alternatively, you can derive the formula as triange has 0 diagonals, quadrangel has 2, pentagon has 5, hexagon has 9 and so on……

Hence the series is 0, 0, 0, 2, 5, 9, 14, …….. (as diagram with 1,2 or 3 vertices will have 0 diagonals).

Using the series one can arrive to the formula given above.

Ques:- How prepare our resume?
Ques:- the total expense of boarding house are partly fixed and partly variable.the charge is rs 70 per head when there are 25 boarders and rs 60 when there are 50 boarders.find charge per head when there are 100 boarders

55

Ques:- Insert the missing number:
2, 6, 12, 20, 30, 42, 56, (…..)
A. 60
B. 64
C. 70
D. 72

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

Ques:- About myself & my family background.
Ques:- Why we need to select you for this position?
Ques:- How much of your education did you earn?
Ques:- What do you know about us or our company?
Ques:- What types of math do you use? Re: Calculus, Algebra, Fractions?
Ques:- Can you name at least 3 fields of employment into which you may fit?
Ques:- What is the missing number in the series. 1, 4, 27, 256, ?, 46656

1^1,2^2,3^3,4:^4,5^5,6^6
1,4,27,256,3125,46656

Ques:- Find out the wrong number in the series:
4, 5, 15, 49, 201, 1011, 6073
A. 5
B. 15
C. 49
D. 201

Correct option is A)
2nd term =(1stterm×1+2)=(4×1+2)=6
3rd term =(2ndterm×2+3)=(6×2+3)=15
4th term =(3rdterm×3+4)=(15×3+4)=49
5th term =(4thterm×4+5)=(49×4+5)=201 and so on
∴5 is wrong.

Ques:- What kind of work you did in your previous company?
Ques:- From its total income, A sales company spent Rs.20,000 for advertising, half of the remainder on commissions and had Rs.6000 left. What was its total income?

32000

Ques:- Three friends divided some bullets equally. After all of them shot 4 bullets the total number of bullets remaining is equal to the bullets each had after division. Find the original number divided?

Ans =18
Explanation:
Assume that initial there were 3*X bullets.
So they got X bullets each after division.
All of them shot 4 bullets. So now they have (X – 4)
bullets each.
But it is given that,after they shot 4 bullets each, total
number of bullets remaining is equal to the bullets each