Among 120 pupils. it came out that 40 like both biscuits and toffees. 16 like neither and twice as many who are like toffees like biscuits. 1. how many like toffees. 2. how many like biscuits 3. how many like exactly one of the two.
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48 like toffee
96 like biscuits
64 like exactly one of the two options
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