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En En packed all 732 cookies into a mixture of large and small boxes. He filled each large box with 30 cookies and each small box with 22 cookies. All the boxes are filled with no cookies left over.What is the least number of boxes used by En En?

3. Answer'

6 box } 22 x 6 132

732 - 132 = 600

600 / 30 = 20

6 small + 20 big = 26 boxes

4.Question from Singapore Chinese Girls' School Prelim Paper

3. no answer

4. from Maris Stella High School Prelim Paper 2