Engineering mathematics

Question

Ninety people at a football party were survey to see what they ateawhile watching the game . The following data was collected : 48 had chin chin , 39 had ground nuts , 35 had chocolate, 20 had ground nuts and chocolate , 19 had both xhocolcho chon chon , while 22 had groundnuts and chin chin while 10 had chin , groundnuts and chocolate use a vain diagram to represent this data how many had notjino

Answer 1

Here is my Venn diagram representing the information in the question.  It looks like nineteen (19) people at the party had nothing to eat.  (I think they were waiting for a pizza!)

Answer 2

19 people has none of these three at football party.