Question

Four chefs can prepare a meal in 20 minutes. They hire an extra chef. How long will it now take to prepare the same meal, working at the same rate as the original four? (SHOW WORK)

Answer 1

I have not written statements**

4 chefs=20min
1 chef=20/4min=5min
(4+1)5 chefs=5*5min=25min

Answer=25 min

Hope it helps you


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Answer 2

Answer:

16

Step-by-step explanation:

4 chefs prepare the meal in 20 mins meaning you can assume that one chef would prepare the meal in 80 mins.

So..

x=80

and if you times x by 5 and divide 80 by 5

5x = 16

That means that 5 chefs preparing the same meal at the same rate will prepare a meal in 16 minutes.

(I got this question on a maths test I did recently and it didn't make much sense to me and when I read the answers to it on here they were mostly above 20 minutes which makes no sense as 5 chefs cooking at the same rate would take less time.This is the method my teacher taught and eventhough its quite confusing I hope it helps. )

:)