Word problems

Question

Scotty is reading a book with 172 pages. Diana is reading a book that has three times as many pages as Scotty's boom. How many pages is Diana book?

And how many equations represent this problem?

172÷3=? , 3×?=172, 172×3=?, ?÷3=172

?÷172=3 162÷?=3

Answer 1

172 x 3 = 516 pages

2 equations represent this problem.

172 x 3 = ?

? ÷ 3 = 172