- Homi bhabha centre for science education (hbcse), tifr General Aptitude Interview Questions
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- Homi bhabha centre for science education (hbcse), tifr Personal Questions round Interview Questions
- Homi bhabha centre for science education (hbcse), tifr HR Interview Questions
- Homi bhabha centre for science education (hbcse), tifr Lead Interview Questions

**Ques:- What is the ratio between perimeters of two squares one having 3 times the diagonal then the other?**

**Ques:- WHY U GOING TO CHANGE JOB AFTER LONG TIME? WHY ARE WAIT THREE YEAR TO CHANGE JOB?**

**Ques:- Where do you find yourself 2 years down the line from now?**

**Ques:- The present ages of three persons are in proportions 4:7:9. Eight years ago, the sum of their ages was 56. Find their present ages.**

**Ques:- The average length of three tapes is 6800 feet. None of the tapes is less than 6400 feet. What is the greatest possible length of one of the other tapes?**

**Recent Answer**: :

x+y+z

—– = 6800

3

x>=6400

6400 + y + z = 20400

y + z = 14000

to get the greatest of y and z, lets assume y = 6400

so, z = 7600

so ANS is 7600

**Ques:- Do you prefer working alone or in groups?**

**Ques:- Here is an interesting sequence.. 1 20 33 400 505 660 777 8000 9009 10100 11121 What are the next few numbers in the above sequence?**

**Ques:- A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?**

**Ques:- Consider you are given a mobile alarm application how will u test it .**

**Ques:- Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time which they take to cross each other is?**

**Ques:- The speed of a car is 90 km in the first hour and 60 km in the second hour. What is the average speed of the car?**

**Ques:- How do you evaluate success?**

**Ques:- . The place in India receiving the lowest rainfall is(1) Jaisalmer(2) Leh(3) Bikaner(4) Jodhpur**

**Ques:- “your director is in another part of the region when you receive an email from another dept requiring the return of a draft framework for a 2 yr strategic plan by 5pm the same day. You realize the originals are with your director.what would you do?**

**Recent Answer**: :

i will drop a mail saying that can you pleaae meal me the the originals of the stregic plan

**Ques:- A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?**

**Ques:- How competent You are in handling Projects independently?**

**Ques:- There are 3 persons Sudhir, Arvind, and Gauri. Sudhir lent cars to Arvind and Gauri as many as they had already. After some time Arvind gave as many cars to Sudhir and Gauri as many as they have. After sometime Gauri did the same thing. At the end of this transaction each one of them had 24. Find the cars each originally had.**

**Ques:- List out the difference between the largest and the smallest number written with 7, 7, 0, 7?**

**Recent Answer**: :

7770-7077=693

**Ques:- Regarding my family background**

**Ques:- Why are you change current job ??**

**Ques:- Mudit’s age 18 years hence will be thrice his age four years ago. What is Mudit’s present age?**

**Recent Answer**: :

Ans :15

X be a present age of mudit

After 18 year age of mudit is X+18

4 year ago age was X-4

As per question,

X+18=3(X-4)

X+18=3X-12

3X-X=18+12

2X=30

X=15

**Ques:- Can you explain in one line why should we select you fromthe number of applications we have received?**

**Ques:- Let S be the set of prime numbers greater than or equal to 2 and less than 100. Multiply all the elements of S. With how many consecutive zeros will the product end?**

**Recent Answer**: :

To determine how many consecutive zeros the product of S will end with, we need to find the highest power of 10 that divides the product. This is equivalent to finding the highest power of 5 that divides the product, since the number of factors of 2 will always be greater than the number of factors of 5.

The primes in S are {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}.

There are 24 primes in S, so the product of S is:

2 x 3 x 5 x 7 x 11 x 13 x 17 x 19 x 23 x 29 x 31 x 37 x 41 x 43 x 47 x 53 x 59 x 61 x 67 x 71 x 73 x 79 x 83 x 89 x 97

We need to find the highest power of 5 that divides this product. To do this, we count the number of factors of 5 in the prime factorization of each number in S.

5 appears once: 5

5 appears once: 25

5 appears once: 35

5 appears once: 55

5 appears once: 65

5 appears once: 85

So, there are six factors of 5 in the product of S. However, we also need to consider the powers of 5 that arise from the factors 25, 35, 55, and 65.

25 = 5 x 5 appears once: 25

35 = 5 x 7 appears once: 35

55 = 5 x 11 appears once: 55

65 = 5 x 13 appears once: 65

Each of these numbers contributes an additional factor of 5 to the product of S. Therefore, there are 6 + 4 = 10 factors of 5 in the product of S.

Since each factor of 5 corresponds to a factor of 10, we know that the product of S will end with 10 zeros. Therefore, the product of S will end with 10 consecutive zeros

**Ques:- An ant had to travel from one corner of a room to diagonallyopposite corner. It can walk on walls, floor and roof only.How will you find the shortest path for this ant ?**

**Ques:- A leak in the bottom of a tank can empty the full tank in 8 hours. An inlet pipe fills water at the rate of 6 liters a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 12 hours. How many liters does the cistern hold?**

**Ques:- Given a grid of m X n. Find out the all possible ways to move from (0,0) to (m,n)**

**Ques:- What is the area of a rectangle whose length is twice its width and whose perimeter is equal to that of a square whose area is 1**

**Ques:- We would like you to join our team but how long you will work for H&B?**

**Ques:- What you know about our company**

**Ques:- A cable, 16 meters in length, hangs between two pillars that are both 15 meters high. The ends of the cable are attached to the tops of the pillars. At its lowest point, the cable hangs 7 meters above the ground. How far are the two pillars apart?**

Recent Answer: Added by PRAthAM On 2022-08-14 16:34:21:16, 28, 36