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MATH / A, B and C are circular regions as shown. There are 7 items in circle C. There are exactly 20 items in A and 10 of those items are not in B. How many items are in B, but not in C? … · Discussion

Discussing A, B and C are circular regions as shown. There are 7 items in circle C. There are exactly 20 items in A and 10 of those items are not in B. How many items are in B, but not in C? … · MATH

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