Maths-
General
Easy

Question

Find the value of x from the following Venn diagram if n open parentheses A union B union C close parentheses equals 100

  1. 10    
  2. 11    
  3. 12    
  4. none of these    

hintHint:

add the set elements and equate with 100

The correct answer is: 10



    A U B U C is the summation of all the data present in all the three sets.
    this implies that,
    11+x + x + 3 + 8 + 2x + x + x-1 + x + 2 + 17 – x= 100
    40 + 6x = 100
    6x = 60
    X = 10

    union means non repetitive addition of data in sets. intersection means subtraction of data elements in sets.

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