If you have 100 coins, 20 of which are gold, what percent of your coins are gold?
Category: Math · Difficulty: medium
Hint: Use the formula for percentage.
Answer
20%
Explanation
Percentage = (part/whole) * 100 = (20/100) * 100 = 20%.
This is a medium math riddle — a moderate challenge for most people. The answer is 20%.
More Math riddles
- At what time will the hands of a clock overlap exactly 5 times between noon and midnight?
- Consider two numbers. If you multiply them, you get 45, but if you add them, you get 14. What are the numbers?
- If A + B = 12 and A * B = 32, what are the values of A and B?
- In a triangle, the sum of the angles is always equal to what number? What am I looking for?
- What is the approximate value of the golden ratio, often denoted by φ (phi)?
- If a rectangle has a length that is twice its width, what is the ratio of length to width?
- 1, 4, 9, 16, ?, 36. What number should fill the blank?
- Alice is twice as old as Bob. In 5 years, Alice will be 1.5 times as old as Bob. How old are they now?