Question

A book collector has 525 books, 72% of which were published prior to 1900. How many books were published prior to 1900?

A) 126 books
B) 360 books
C) 379 books
D) 525 books

Answer 1

Upon calculating 72% of 525 books, we find that 378 books, rounded to 379, were published prior to 1900, which is answer option C.

Step-by-step explanation:

The student asked how many out of 525 books were published prior to 1900 if 72% of them were. To find the number, we must calculate 72% of 525. The process involves converting the percentage to a decimal and then multiplying by the total number of books.

First, convert 72% to a decimal, which is 0.72. Next, multiply this decimal by 525:

0.72 × 525 = 378

Hence, 378 books were published prior to 1900. The correct answer is C) 379 books, considering the possibility of rounding.