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A burger restaurant employs 3 chefs during the week. These 3

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A burger restaurant employs 3 chefs during the week. These 3 [#permalink] New post   01 Dec 2020, 04:46
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A burger restaurant employs 3 chefs during the week. These 3 chefs can make a total of 225 burgers in 5 hours. On the weekends, the restaurant employs more chefs. With all the chefs working on the weekends, 750 burgers can be made in 10 hours. How many more chefs are working on the weekend compared to in the week?

A. 5

B. 4

C. 3

D. 2

E. 1
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D
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Re: A burger restaurant employs 3 chefs during the week. These 3 [#permalink] New post   20 Dec 2020, 14:44
1
3 chefs are able to make 225 burger per 5 hours and that means 45 per hour and each chef is making 15 burgers/h
And during the weekend the restaurant employs more chefs so that they are able to make 750 burgers/ 10 hours = 75 burgers/hour.
Therefore, the number of chefs during weekend is= 75/15= 5.
And the question asks about the difference between weekday and weekend which is 5-3=2.
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Re: A burger restaurant employs 3 chefs during the week. These 3 [#permalink] New post   03 Feb 2021, 00:22
1
Use:

M1 x T1 x W2 = M2 x T2 x W1

(M = men, T = time, and W = work)

3 x 5 x 750 = (3+x) x 10 x 225
x = 2

Hence, option D
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Re: A burger restaurant employs 3 chefs during the week. These 3 [#permalink]
03 Feb 2021, 00:22
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