Minimum Right Handed Girls puzzle

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Minimum Right Handed Girls puzzle

Minimum Right Handed Girls puzzle

Katie is teaching a class of thirty pupils,
of which fourteen are girls.
She knows that there are twenty-two pupils who are right-handed.

What is the minimum number of girls
who are right handed in this class?

Click here for Answer

6 is the answer.
Out of 30 pupils, 22 are right handed. so 8 are left handed.
Suppose all the 8 left handed are girls.
so minimum 6 girls are right handed (Since there are 14 girls)

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