Mathematics

Mark worked on math homework less than 1/3 the amount of time that his brother did. If Mark spent 25 minutes on his math homework, how much time did his brother spend on his math homework?


Answers

nevar

2 years ago Comment

25 < 1/3x
25 ÷ 1/3 < x
25 × 3/1 < x
75 < x

Since x is greater than 75, Marks brother spent greater than 75 minutes studying.