Age and Coin Puzzles Worksheet

Maths tricks trick 14: Age and coin puzzles · Set 505 · 40 questions

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.

1. 1.You have 13 coins. Each coin is ₹1 or ₹2, and together they make ₹23. How many ₹2 coins do you have?
2. 2.A piggy bank has 8 coins of ₹5 and 15 coins of ₹2. How many rupees are in it?
3. 3.The ages of two twins add up to 20. How old is each twin?
4. 4.A father is 43 years old and his son is 4. How old was the father when the son was born?
5. 5.A girl is 12 years old and her brother is 5 years older. How old will her brother be in 3 years?
6. 6.You have 6 coins. Each coin is ₹1 or ₹2, and together they make ₹8. How many ₹2 coins do you have?
7. 7.A father is 37 years old and his son is 7. How old was the father when the son was born?
8. 8.In 3 years a boy will be 11 years old. How old was he 3 years ago?
9. 9.You have 7 coins. Each coin is ₹1 or ₹2, and together they make ₹9. How many ₹2 coins do you have?
10. 10.The ages of two twins add up to 10. How old is each twin?
11. 11.A girl is 12 years old and her brother is 6 years older. How old will her brother be in 3 years?
12. 12.In 3 years a boy will be 16 years old. How old was he 2 years ago?
13. 13.A girl is 10 years old and her brother is 6 years older. How old will her brother be in 2 years?
14. 14.A girl is 12 years old and her brother is 4 years older. How old will her brother be in 4 years?
15. 15.A girl is 9 years old and her brother is 5 years older. How old will her brother be in 8 years?
16. 16.In 3 years a boy will be 13 years old. How old was he 4 years ago?
17. 17.A father is 35 years old and his son is 4. How old was the father when the son was born?
18. 18.A father is 32 years old and his son is 10. How old was the father when the son was born?
19. 19.A piggy bank has 11 coins of ₹5 and 5 coins of ₹2. How many rupees are in it?
20. 20.You have 6 coins. Each coin is ₹1 or ₹2, and together they make ₹11. How many ₹2 coins do you have?
21. 21.You have 6 coins. Each coin is ₹1 or ₹2, and together they make ₹9. How many ₹2 coins do you have?
22. 22.In 3 years a boy will be 14 years old. How old was he 2 years ago?
23. 23.A father is 30 years old and his son is 7. How old was the father when the son was born?
24. 24.A girl is 10 years old and her brother is 4 years older. How old will her brother be in 7 years?
25. 25.A piggy bank has 10 coins of ₹5 and 2 coins of ₹2. How many rupees are in it?
26. 26.A piggy bank has 6 coins of ₹5 and 8 coins of ₹2. How many rupees are in it?
27. 27.The ages of two twins add up to 18. How old is each twin?
28. 28.A girl is 6 years old and her brother is 4 years older. How old will her brother be in 9 years?
29. 29.A girl is 5 years old and her brother is 5 years older. How old will her brother be in 5 years?
30. 30.In 6 years a boy will be 19 years old. How old was he 2 years ago?
31. 31.A father is 37 years old and his son is 5. How old was the father when the son was born?
32. 32.The ages of two twins add up to 26. How old is each twin?
33. 33.In 5 years a boy will be 13 years old. How old was he 5 years ago?
34. 34.A girl is 7 years old and her brother is 2 years older. How old will her brother be in 9 years?
35. 35.You have 15 coins. Each coin is ₹1 or ₹2, and together they make ₹28. How many ₹2 coins do you have?
36. 36.The ages of two twins add up to 24. How old is each twin?
37. 37.You have 13 coins. Each coin is ₹1 or ₹2, and together they make ₹17. How many ₹2 coins do you have?
38. 38.The ages of two twins add up to 8. How old is each twin?
39. 39.A piggy bank has 10 coins of ₹5 and 11 coins of ₹2. How many rupees are in it?
40. 40.A father is 45 years old and his son is 4. How old was the father when the son was born?

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