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Age and Coin Puzzles Worksheet

Maths tricks trick 14: Age and coin puzzles · Set 273 · 40 questions
TalentJR

The trick (Pretend and adjust): Ages: find each age now, then add (later) or take away (earlier) the same years for everyone. Coins: pretend all coins are ₹1; the extra money tells you how many ₹2 coins there are. Check your answer by putting it back into the riddle.

NameDateTime takenScore ___ / 40
  1. 1.The ages of two twins add up to 10. How old is each twin?
  2. 2.A girl is 7 years old and her brother is 6 years older. How old will her brother be in 8 years?
  3. 3.A piggy bank has 10 coins of ₹5 and 15 coins of ₹2. How many rupees are in it?
  4. 4.The ages of two twins add up to 12. How old is each twin?
  5. 5.A girl is 9 years old and her brother is 6 years older. How old will her brother be in 2 years?
  6. 6.You have 11 coins. Each coin is ₹1 or ₹2, and together they make ₹15. How many ₹2 coins do you have?
  7. 7.In 3 years a boy will be 14 years old. How old was he 4 years ago?
  8. 8.You have 5 coins. Each coin is ₹1 or ₹2, and together they make ₹7. How many ₹2 coins do you have?
  9. 9.The ages of two twins add up to 14. How old is each twin?
  10. 10.In 6 years a boy will be 15 years old. How old was he 3 years ago?
  11. 11.A father is 44 years old and his son is 14. How old was the father when the son was born?
  12. 12.A piggy bank has 4 coins of ₹5 and 5 coins of ₹2. How many rupees are in it?
  13. 13.A piggy bank has 6 coins of ₹5 and 5 coins of ₹2. How many rupees are in it?
  14. 14.In 3 years a boy will be 16 years old. How old was he 7 years ago?
  15. 15.A girl is 7 years old and her brother is 4 years older. How old will her brother be in 3 years?
  16. 16.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹22. How many ₹2 coins do you have?
  17. 17.A girl is 8 years old and her brother is 4 years older. How old will her brother be in 9 years?
  18. 18.A piggy bank has 11 coins of ₹5 and 14 coins of ₹2. How many rupees are in it?
  19. 19.A girl is 12 years old and her brother is 2 years older. How old will her brother be in 9 years?
  20. 20.A piggy bank has 8 coins of ₹5 and 8 coins of ₹2. How many rupees are in it?
  21. 21.The ages of two twins add up to 24. How old is each twin?
  22. 22.In 3 years a boy will be 12 years old. How old was he 2 years ago?
  23. 23.A piggy bank has 6 coins of ₹5 and 14 coins of ₹2. How many rupees are in it?
  24. 24.A father is 34 years old and his son is 7. How old was the father when the son was born?
  25. 25.In 3 years a boy will be 12 years old. How old was he 3 years ago?
  26. 26.A piggy bank has 3 coins of ₹5 and 15 coins of ₹2. How many rupees are in it?
  27. 27.A piggy bank has 6 coins of ₹5 and 3 coins of ₹2. How many rupees are in it?
  28. 28.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹29. How many ₹2 coins do you have?
  29. 29.A girl is 5 years old and her brother is 2 years older. How old will her brother be in 6 years?
  30. 30.The ages of two twins add up to 8. How old is each twin?
  31. 31.A piggy bank has 6 coins of ₹5 and 11 coins of ₹2. How many rupees are in it?
  32. 32.A girl is 11 years old and her brother is 2 years older. How old will her brother be in 3 years?
  33. 33.A piggy bank has 4 coins of ₹5 and 3 coins of ₹2. How many rupees are in it?
  34. 34.In 4 years a boy will be 16 years old. How old was he 6 years ago?
  35. 35.A girl is 10 years old and her brother is 5 years older. How old will her brother be in 5 years?
  36. 36.A girl is 10 years old and her brother is 3 years older. How old will her brother be in 9 years?
  37. 37.You have 9 coins. Each coin is ₹1 or ₹2, and together they make ₹10. How many ₹2 coins do you have?
  38. 38.The ages of two twins add up to 26. How old is each twin?
  39. 39.In 2 years a boy will be 12 years old. How old was he 5 years ago?
  40. 40.A girl is 5 years old and her brother is 2 years older. How old will her brother be in 4 years?

Answer key

  1. 5
  2. 21
  3. 80
  4. 6
  5. 17
  6. 4
  7. 7
  8. 2
  9. 7
  10. 6
  11. 30
  12. 30
  13. 40
  14. 6
  15. 14
  16. 7
  17. 21
  18. 83
  19. 23
  20. 56
  21. 12
  22. 7
  23. 58
  24. 27
  25. 6
  26. 45
  27. 36
  28. 14
  29. 13
  30. 4
  31. 52
  32. 16
  33. 26
  34. 6
  35. 20
  36. 22
  37. 1
  38. 13
  39. 5
  40. 11

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