amathews wrote:
A restaurant makes its regular sauce from 5 parts sweet sauce and 3 parts chilli sauce. Then its spicy sauce is made from 5 parts chilli sauce and 3 parts sweet sauce. How many cups of chilli sauce must be mixed with a 24-cup regular sauce to turn it to spicy sauce?
A) 6
B) 12
C) 16
D) 24
E)30
24 cups of regular sauce has 15 cups sweet and 9 cups chilli.
We want to have 5 cups chilli for every 3 cups sweet. We have 15 cups sweet, so we need 25 cups chilli.
We already have 9 cups chilli and
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