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Relfor Labs Interview Questions and Answers
3 Comments 9 Views 4 years ago
Ques:- When Seeta made necklaces of either 16 beads, 20 beads or 36 beads, not a single bead was left over. What could be the least number of beads Seeta had?
A. 700
B. 710
C. 720
D. 740
Right Answer:

We are given:

  • Seeta made necklaces of either 16, 20, or 36 beads.

  • No bead was left over in any case.

  • We are to find the least number of beads she could have had.


🧠 This is a classic LCM problem.

We are to find the Least Common Multiple (LCM) of 16, 20, and 36.


🔹 Step 1: Prime factorization

  • 16 = 2⁴

  • 20 = 2² × 5

  • 36 = 2² × 3²

Now take the highest powers of all primes:

  • 2⁴, 3², 5

LCM=24×32×5=16×9×5=144×5=720\text{LCM} = 2⁴ × 3² × 5 = 16 × 9 × 5 = 144 × 5 = 720


✅ Final Answer:
Seeta had at least 720 beads.

1 Comments 0 Views 5 years ago
Ques:- What is the least number of four digits which is divisible by 4, 6, 8 and 10 ?
No Answer Provided.
2 Comments 0 Views 5 years ago
Ques:- A is sister of B. C is brother of D. D is sister of A. Howis B related to D?
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- In mathematics country 1,2,3,4….,8,9 are nine cities. Cities which form a no. that is divisible by 3 are connected by air planes. (e.g. cities 1 & 2 form no. 12 which divisible by 3 then 1 is connected to city 2). Find the total no. of ways you can go to 8 if you are allowed to break the journeys.
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- What do u mean by Friendship?
No Answer Provided.
3 Comments 0 Views 5 years ago
Ques:- A student scored an average of 80 marks in 3 subjects: Physics, Chemistry and Mathematics. If the average marks in Physics and Mathematics is 90 and that in Physics and Chemistry is 70, what are the marks in Physics?
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- What has been the most satisfying moment in your life?
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- Regarding my family background
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- A boy travels in a scooter. After covering 2/3rd of the distance, the wheel got punctured. He covered the remaining distance by walking. Walking time is twice of the time taken in scooter. How many times the riding speed is of the walking speed?…
No Answer Provided.
3 Comments 0 Views 5 years ago
Ques:- What is the equivalent compound ratio of 5:6::7:10::6:5?
No Answer Provided.
1 Comments 0 Views 5 years ago
Ques:- The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 years?
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- At present what is the percentage of Cash Reserve Ratio (CRR) ?
No Answer Provided.
0 Comments 0 Views 6 years ago
Ques:- On a scale of 1 to 10 how would you rate yourself as a leader?
No Answer Provided.
0 Comments 0 Views 6 years ago
Ques:- Tell me honestly about the strong points and weak points of your boss (company, management team, etc.)
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- Do like doing things in a new way? Do you think it is worth it?
No Answer Provided.
1 Comments 2 Views 5 years ago
Ques:- A can run a kilometer race in 4 1/2 min while B can run same race in 5 min. How many meters start can A give B in a kilometer race, so that the race mat end in a dead heat?
No Answer Provided.
3 Comments 0 Views 5 years ago
Ques:- If it is possible to make only one meaningful word with the second, the third, the sixth and the eighth letters of the word FRAGMENT, using each letter only once, then which of the following will be the third letter of that word? If no such word can be formed, the give ‘X’ as the answer and if more than one such words can be formed, then give ‘Y’ as the answer.
No Answer Provided.
1 Comments 0 Views 5 years ago
Ques:- One man want to build a wall .The length and breadth of the wall are 20 and 30 respectively. He needs 35 bricks for one square centimeter. How many bricks he need?
A. 21500
B. 30000
C. 21000
D. 20000
E. 25000
No Answer Provided.
1 Comments 0 Views 5 years ago
Ques:- There are 150 weights. Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260. What is the number of 1kg weights?
No Answer Provided.
0 Comments 0 Views 5 years ago
Ques:- What are the three things you would like to change in this world?
No Answer Provided.
1 Comments 0 Views 5 years ago
Ques:- A person with some money spends1/3 for cloths, 1/5 of the remaining for food and 1/4 of the remaining for travel. He is left with Rs 100/- . How much did he have with him in the beginning ?
No Answer Provided.
2 Comments 0 Views 4 years ago
Ques:- 38649 – 1624 – 4483 = ?
A. 32425
B. 32452
C. 34522
D. 32542
No Answer Provided.
1 Comments 0 Views 4 years ago
Ques:- The average age of 12 students is 20 years. If the age of one more student is included, the average decreases by 1. What is the age of the new student?
A. 5 years
B. 6 years
C. 7 years
D. 9 years
No Answer Provided.
1 Comments 0 Views 5 years ago
Ques:- The post office is to the east of the school while my house is to the south of the school. The market is to the north of the post office. If the distance of the market from the post office is equal to the distance of my house from the school, in which direction is the market with respect to my school?
No Answer Provided.