TISSNET 2017

Question 42

Set A is a collection of first 10 whole numbers. Set B is a collection of first 10 natural numbers. How many number/s is/are not common to both set A and set B?

Solution

Set A = { 0,1,2,3,4,5,6,7,8,9}

Set B = {1,2,3,4,5,6,7,8,9,10}

2 elements are not common


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