On a wedding catering service, An experienced chef can prepare a service for a wedding in 6 hours while an novice chef would finish the preparations in 7 hours.
If the catering service employs the same number of novice and experienced chefs, then how many chefs would it take to prepare a wedding service in 1 hour and 36 minutes?  Choose the correct choice from the following answers
A) 2
B) 3
C) 4
D) 6
E) 8
Experienced chefs work = 1 wedding/6 hours   Novice chefs work = 1 wedding/7 hours   Since we don't know the number of experienced or novice chefs but know that there is an equal number each, let the number of chefs for each group equalx   1hr and 36mins = 8/5 an hour   x/6 + x/7 = 1 wedding / (8/5)   x/6 + x/7 = 5/8   x=2   So there are 2 novice chefs and 2 experienced chefs. In total there are 4. The answer is 4.
<result>C</result>
On a wedding catering service, An experienced chef can prepare a service for a wedding in 6 hours while an novice chef would finish the preparations in 7 hours.
If the catering service employs the same number of novice and experienced chefs, then how many chefs would it take to prepare a wedding service in 1 hour and 36 minutes?