Question

A stack of books is 35 inches high. If each book is 1 3/4 inches thick, how many books are in the stack?

Answer 1

Answer:

20 books

Step-by-step explanation:

Height of stack = 35 inches

Thickness of one book $=1\frac{3}{4} =\frac{7}{4}\: in$

No. of books

$= 35 \div \frac{7}{4} \\ \\ = 35 \times \frac{4}{7} \\ \\ = 5 \times 4 \\ \\ = 20$