Algebra practice question

Answer: 40

Let the multiples be m, m + 5, m + 10: 3m + 15 = 105 → m = 30. The largest is 40.

Common wrong answers

If you answered 30

30 is the smallest.

If you answered 35

35 is the middle one (and 105 ÷ 3).

If you answered 45

45 is one step too far.

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