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Question

The number of Tajik's who like Pop, R&B and Jazz music are at least
  1. None of these
  2. 15000
  3. 12000
  4. 18000
  5. 24000


Solution

The correct option is B 15000

We need to find the minimum of all in a 3 set venn diagram which can be calculated using a shortcut as follows

Take the difference from 100 for each of the groups

Pop= 100-100 =0

R&B=100- 60=40

Jazz= 100-65=35

Sum of all the differences = 75.

Take the difference from 100 again to get the minimum = 100-75= 25%

Answer= 25% of 60000 = 15000. Option (a)

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