Latest Infosys Aptitude Question SOLUTION: Three customers want haircut and a shave. In a saloon, two barbers operate at same speed. They take quarter of an hour for the haircut and 5 mins for the shave. How quickly can th

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Three customers want haircut and a shave. In a saloon, two barbers operate at same speed. They take quarter of an hour for the haircut and 5 mins for the shave. How quickly can they finish the haircut and shave of these three customers?

Asked In Infosys Aditi Sharma (13 years ago)

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nika  (11 years ago)

Suppose the time is 12:00..for the first person,his haircut and shave can be done at the same time.after 5 minutes,the shaving barber moves to the second one n after 5 minuts to the last third person..now time left after the shaving of the 3 men will be 15 minutes(12:15 is going),so he will moves quickly to the second one for his haircut(12:15 to 12:30) and for the third one,the haircutter of the first one has moves already to him for his haircut...means that from 12:15 to 12:30,the haircutting of 2nd and 3rd is done..
answer is :30 minutes

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harshit  (9 years ago)

30 min
.
lets customers r C1 C2 C3 ANB BARBER B1 B2 time intervl 5 min..

5min 5min 5min 5min 5min 5min

B1 C1(Shave) c2(shave) c2(-----haircut-----) c3(shave)
B2 c3(----haircut---------) c1(---haircut-------)

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