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counting and probability junior
Problem
Three flower beds overlap as shown. Bed A has 500 plants, bed B has 450 plants, and bed C has 350 plants. Beds A and B share 50 plants, while beds A and C share 100. The total number of plants is 
(A)
(B)
(C)
(D)
Solution
Plants shared by two beds have been counted twice, so the total is .
Final answer
C