<PRE><B>Question 1059112</B>
Baker takes x minutes, and in 1 minute does 1/x of the cookies
The assistant takes 4x minutes and in 1 minute does 1/4x of the cookies.
Together, they do it in 20 minutes.
So, 20/x+20/4x=1
multiply everything by 4x
80+20=4x
4x=100
x=25 minutes  ANSWER
It takes the baker 25 minutes and her assistant 100 minutes.
1/25+1/100=4/100+1/100=5/100=1/20; 20 minutes check.
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