AlgebraEasy–MediumPages in the shorter book
Algebra practice question
Priya's book has three times as many pages as Tom's book. Together the two books have 200 pages. How many pages does Tom's book have?
Answer: 50
3t + t = 200 gives 4t = 200, so t = 50.
Common wrong answers
- If you answered 100
- 100 halves 200, ignoring the ratio.
- If you answered 150
- 150 is Priya's book.
- If you answered 66.67
- 66.67 divides 200 by 3.
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