26 students 15 like vanilla 16 like chocolate. 3 do not like either flavour. How many like both vani

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26 students 15 like vanilla 16 like chocolate. 3 do not like either flavour. How many like both vanilla and chocolate

Define our people:
  1. We have Vanilla Only
  2. Chocolate Only
  3. Both Vanilla and Chocolate
  4. Neither Vanilla Nor Chocolate
  5. Add up 1-4 to get our total

Total = Vanilla Only + Chocolate Only - Vanilla and Chocolate + Neither
26 = 15 + 16 - V&C + 3
26 = 34 - V&C

Subtract 34 from each side
-V&C = -8

Multiply each side by -1
V&C = 8
 
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