Muffins 3

Adela went out and bought some muffins. She gave 27 to Jack and 2/7 of the rest to her brother. She is then left with 1/2 of the number of muffins she had before. How many muffins did Adela have at first?

Correct answer:

n =  90

Step-by-step explanation:

n2772 (n27)=2n  n272/7 (n27)=n/2  3n=270  n=3270=90  n=90

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