Infosys Company HR Interview Interview

There are 2 guards Bal and Pal walking on the side of a wall of a warehouse (12m X 11m) in opposite directions. They meet at a point and Bal says to Pal "See you again in the other side". After a few moments of walking Bal decides to go back for a smoke but he changes his direction again to his previous one after 10 minutes of walking in the other (opposite) direction remembering that Pal will be waiting for to meet. If Bal and Pal walk 8 and 11 feet respectively, how much distance they would have traveled before meeting again.

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Infosys Other Question
Write a five digit number, which will be having two prime numbers, and some two more conditions, like 1st digit greater than 2nd etc its easy (remember one is not a prime number, most people do mistake taking 1 as prime number) A fly is there 1 feet below the ceiling right across a wall length is 30m at equal distance from both the ends. There is a spider 1 feet above floor right across the long wall equidistant from both the ends. If the width of the room is 12m and 12m, what distance is to be traveled by the spider to catch the fly? if it takes the shortest path.