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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?
Read Solution (Total 2)
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- 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 - 11 years agoHelpfull: Yes(12) No(7)
- 30 min
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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-------) - 9 years agoHelpfull: Yes(1) No(2)
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