Question

Hai friend we have 3 groups named A B.C. Can you say how many are we in each
group
(a) Group A: We and you together is 21.
b) Group B: We and us again with you will make 21.
(c) Group C: We and us again with half of us and you will make 21​

Answer 1

Answer:

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This means that we have to find the number of people in A – the number of people in [AB + ABC + AC] only. We know that the number of people in A = 10. Also, the number of people in AB = 2, AC = 3 and ABC = 3. Therefore, we have: The number of people who like apples only = 10 – [ 2 + 3 + 3 ] = 2.