A Basic info about the company:

IBS Software Services is an Indian international IT solutions provider sufficing the Travel Transportation and Logistics industry. The company's headquarters are located at Technopark, Trivandrum India. IBS owns IP rights to seventeen products in the TTL industry. The chief lines of business comprise airline and airport operations; airline passenger reservation; aircraft maintenance, repair, and overhaul; loyalty management; airline cargo services; travel and cruise; and hospitality distribution.

The motive behind posting these IBS Software Services Interview Puzzles is to help you shape your skills and making you much more confident while appearing in the interviews.

Difficulty Popularity

Aishwarya was first to board to her flight to delhi.

She forgot her seat number and picks a random seat for herself.

After this, every single person who get to the flight sits on his seat if its available else chooses any available seat at random.

Abhishek is last to enter the flight and at that moment 99/100 seats were occupied.

Whats the probability what Abhishek gets to sit in his own seat ?

She forgot her seat number and picks a random seat for herself.

After this, every single person who get to the flight sits on his seat if its available else chooses any available seat at random.

Abhishek is last to enter the flight and at that moment 99/100 seats were occupied.

Whats the probability what Abhishek gets to sit in his own seat ?

Difficulty Popularity

The puzzle question is : On Bagshot Island, there is an airport. The airport is the home-base of an unlimited number of identical airplanes. Each airplane has a fuel capacity to allow it to fly exactly 1/2 way around the world, along a great circle. The planes have the ability to refuel in flight without loss of speed or spillage of fuel. Though the fuel is unlimited, the island is the only source of fuel.

What is the fewest number of aircraft necessary to get one plane all the way around the world assuming that all of the aircraft must return safely to the airport? How did you get to your answer?

Notes:

(a) Each airplane must depart and return to the same airport, and that is the only airport they can land and refuel on ground.

(b) Each airplane must have enough fuel to return to airport.

(c) The time and fuel consumption of refueling can be ignored. (so we can also assume that one airplane can refuel more than one airplanes in air at the same time.)

(d) The amount of fuel airplanes carrying can be zero as long as the other airplane is refueling these airplanes. What is the fewest number of airplanes and number of tanks of fuel needed to accomplish this work? (we only need airplane to go around the world)

What is the fewest number of aircraft necessary to get one plane all the way around the world assuming that all of the aircraft must return safely to the airport? How did you get to your answer?

Notes:

(a) Each airplane must depart and return to the same airport, and that is the only airport they can land and refuel on ground.

(b) Each airplane must have enough fuel to return to airport.

(c) The time and fuel consumption of refueling can be ignored. (so we can also assume that one airplane can refuel more than one airplanes in air at the same time.)

(d) The amount of fuel airplanes carrying can be zero as long as the other airplane is refueling these airplanes. What is the fewest number of airplanes and number of tanks of fuel needed to accomplish this work? (we only need airplane to go around the world)

Difficulty Popularity

Two trains under a controlled experiment begin at a speed of 100 mph in the opposite direction in a tunnel. A supersonic bee is left in the tunnel which can fly at a speed of 1000 mph. The tunnel is 200 miles long. When the trains start running on a constant speed of 100 mph, the supersonic bee starts flying from one train towards the other. As soon as the bee reaches the second train, it starts flying back towards the first train.

If the bee keeps flying to and fro in the tunnel till the trains collide, how much distance will it have covered in total?

If the bee keeps flying to and fro in the tunnel till the trains collide, how much distance will it have covered in total?

Difficulty Popularity

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Difficulty Popularity

At a restaurant downtown, Mr. Red, Mr. Blue, and Mr. White meet for lunch. Under their coats they are wearing either a red, blue, or white shirt.Mr. Blue says, 'Hey, did you notice we are all wearing different colored shirts from our names?' The man wearing the white shirt says, 'Wow, Mr. Blue, that's right!'

Can you tell who is wearing what color shirt?

Can you tell who is wearing what color shirt?

13 January

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07 January

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