A certain fraction when added to 1/3 gives 1. What is this fraction?
Category: Math · Difficulty: hard
Hint: Set up the equation to find the unknown fraction.
Answer
2/3
Explanation
Let the fraction be x. Then x + 1/3 = 1 leads to x = 2/3.
This is a hard math riddle — a tricky one that takes a little thought. The answer is 2/3.
More Math riddles
- If Sarah is twice as old as Tom and the sum of their ages is 36, what is Tom's age?
- If I am a two-digit number and the sum of my digits is 11 while the difference is 5, what number am I?
- An egg costs 10 cents. If you buy a dozen eggs and get one for free, how much do you actually pay per egg?
- If you triple one and then subtract two, what remains in mind?
- A number minus six equals ten. What is the number?
- If you add three to me, the result is twelve. What am I?
- A frog jumps 3 feet forward and then 2 feet back. How far is it from its starting point after one jump?
- What is 100 divided by 5?