Question

In January, Mr. Tan's students read 20 books. In February, they read 15 books.

What is the percent increase or decrease in the number of books they read?

Answer 1

25% decrease

Explanation:

25% of 20 is 5. Because 0.25*20=5.

And because they read 15 book next month, if was 5 bookks less, which was 25% less.

Very choppy answer. But I hope that helped

Answer 2

25% Decrease

Explanation:

15/20 is 75%. 100-75 (since they read less) is 25%