30 minutes = 5 puzzles
60 minutes = 10 puzzles
90 minutes = 15 puzzles
She will solve 15 puzzles in an hour and 30 minutes
Answer:
15
Step-by-step explanation:
If it takes her 30 minutes to solve 5 puzzles, then at that rate, she would solve 15 logic puzzles in 1 hour and 30 minutes.
5 = 30
30 must equal 90 (1 hour and 30 minutes)
3(30)
However, you must do to the other side by what you do of one.
5(3) = 30(3)
15 = 90
