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Jackie and her two younger sisters are making cookies. each of her sisters makes 75% of the number of cookies Jackie makes. When they combine their cookies into one jar, what percent of the total cookies were made by Jackie?

 Jun 11, 2020
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Jackie makes =J cookies

Her sisters   =2*0.75J

J + 2*0.75J  =2.5J - Total number of cookies  made.

Jackie's percentage =J / 2.5J =1/2.5 = 40 % - Jackies's share

 Jun 11, 2020

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