Question

Ben has a music book with 84 songs. He has learned how to play 25% of them. How many songs in the book does Ben NOT know how to play

Answer 1

The answer is 63.

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24% of 84 is 21. 84 - 21 = 63.

Answer 2

63

Explanation:

This is because 25% of 84 is 21. He knows how to play 21 songs. 84-21=63.

63 is how many songs he does NOT know how to play.