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Australian AMC 2023 - Upper Primary Question 14

AMC AUSTRALIA · Australian AMC 2023 - Upper Primary

Question 14

Syed’s mother had some money to share with her family. She gave one-quarter of her money to Syed. Then she gave one-third of what was left to Ahmed. Then she gave one-half of what was left to Raiyan. She was left with 15 dollars, which she kept for herself. How much money did Syed’s mother have to start with?
  1. 30 dollars
  2. 45 dollars
  3. 60 dollars
  4. 90 dollars
  5. 120 dollars