Serafina energy ltd. Interview Questions Answers, HR Interview Questions, Serafina energy ltd. Aptitude Test Questions, Serafina energy ltd. Campus Placements Exam Questions

20 common asked question in every interview

Ques:- A train moves fast a telegraph post and a bridge 264 m long in 8 sec and 20 sec respectively. What is the speed of the train?

Recent Answer : Added by Laksith Ekanayake On 2022-08-14 16:33:51:

237.6 Kmh

Ques:- And why do you think you are ambitious?

Ques:- Ravi is 7 ranks ahead of Sumit in a class of 39. If Sumit’s rank is seventeenth from the last, what is Ravi’s rank from the start?

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:- if a number is choosen between 100 and 999 includeing these numberrs what is the provbabilty that the number selected does not contain a 7 is

Recent Answer : Added by Admin On 2020-05-17 11:59:52:

p = prob(1st digit not 7)*prob(2nd digit not 7)*prob(3rd
digit not 7)
=(8/9)*(9/10)*(9/10)
=0.72
Sandhya had it right except that there are 900 numbers
between 100 and 999 inclusive (not 899).

Ques:- What do you think you will bring to this job?

Ques:- Which of the following is always odd?

A. Sum of two odd numbers

B. Product of two odd numbers

C. Difference of two odd numbers

D. None of these

Recent Answer : Added by narendra On 2022-09-18 09:03:02:

Ques:- The biggest challenges faced during the 8 years of experience and the strategies implemented to solve these challenges

Ques:- There are 6561 balls out of them 1 is heavy. Find the minimum number of times the balls have to be weighed for finding out the heavy ball.

Recent Answer : Added by divyansh On 2021-09-22 16:55:55:

Answer=8

Ques:- The owner of a hobby store needed to calculate the percentage of customers who purchase wood glue. Upon completing his survey, he noticed that 60% of the people that entered his store purchased an item. Of those customers, 15 percent purchased wood glue. What percent of the people that entered the store purchased wood glue?

Recent Answer : Added by Abhishek Chabri On 2022-10-08 07:25:35:

15%

Ques:- ?should India breakup the friendly ties with Pakistan?.

Ques:- How do you get people who do not want to work together to establish a common approach to a problem?

Ques:- After 25% increase price of article is 250 what is its price after 25% decrease ?

Recent Answer : Added by AKHIL On 2021-06-21 17:40:18:

Article price=200
After 25%increase =250
After 25% decrease =187.5

Ques:- Side of rhombus is 5cm and sum of lengths of diagonals is 12cm. what is the area of rhombus?

Ques:- A frog in a well 30 ft deep jumps 3 ft slips 2 ft each day.How many days does take on the whole?

Recent Answer : Added by Pat On 2023-04-26 17:34:54:

Day 1: 30-3ft = 27+2ft = 29
Day 8: 23 jumps 3ft = 20 slips 2ft = 22
Day 16: 13 jumps 3ft = 10 slips 2ft = 12
Day 24: 3 jumps 3ft = Out?

Ques:- A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is?

Recent Answer : Added by Atif On 2022-12-05 16:13:31:

3000(4x/100) + 5000(2x/100)=10

Ques:- How can you grow international business of organisation & yourself too?

Ques:- Share your work experience.

Ques:- Using the ciphers 1 up to 9, three numbers (of three ciphers each) can be formed, such that the second number is twice the first number, and the third number is three times the first number. Which are these three numbers?

Recent Answer : Added by Erick Mesquita On 2022-11-06 15:57:09:

The 3-digit number can be written as the sequence [n, 2n, 3n]
n = 1 → [1, 2, 3] → valid
n = 2 → [2, 4, 6] → valid
n = 3 → [3, 6, 9] → valid

n = 4 → [4, 8, 12] is not valid because this would lead to a 4-digit number
any value of n > 4 would also produce invalid answer

Answer: Three numbers: {123, 246, 369}

Ques:- A starts from a place at 11.00 am and travels at a speed of 4 kmph , B starts at 1.00 pm and travels with speeds of 1 kmph for 1 hr , 2 kmph for the next hr , 3 kmph for the next hr and so on. At wht time will B catch up with A ?

Recent Answer : Added by DK BOSS On 2021-07-17 06:18:40:

the answer is At 9:48 PM
At 1:00 pm the difference between A & B = 8 km
after 2:00 pm ………………. = 11 km (as B’s speed
is 1 and A’s 4 km, then eqv speed=(4-1)=3 km)
After 3:00………………….. = 13 km (as B’s speed 2 km)
After 4:00………………….. = 14 km
after 5:00………………….. = 14 km (A’s speed= B’s
speed)
after 6:00………………….. = 13 km
after 7:00………………….. = 11 km
after 8:00………………….. = 8 km
after 9:00………………….. = 4 km
and now the eqv speed is= (9-4) =5 km/hr;
and the renaming distance is 4 km;
then, time=(60*4)/5=48 min;
then the meeting time is=9:00+48 min=9:48 pm;

Ques:- When i went to a call center she asked me. where u want to see after few years?

Ques:- Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be?

Recent Answer : Added by Joseph Owusu On 2022-03-11 17:00:39:

The first number is 10 and the second number is 5

Ques:- Why are you the best person for this job?

Ques:- Can you tell us something about your family and your growing up days?

Ques:- If there is a fixed deadline given by manager, walk through the steps you would take.

Ques:- 2. Which technologies worked on before?

Ques:- What is your current package?

Ques:- Select the decimal value of arithmetic shift right by 2 operation on a signed integer -102. -57 +39 -39 +57

Recent Answer : Added by DK BOSS On 2021-07-21 15:26:40:

it is based on the right shift operation on the perticular digit

Ques:- Describe your ideal company, location and job.

Ques:- A boat travels 20 kms upstream in 6 hrs and 18 kms downstream in 4 hrs.Find the speed of the boat in still water and the speed of the water current?

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