hardmath

In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ?

3. Take the fraction and round up to get both 3 and 4

Why this works

This riddle plays with unconventional mathematical logic. In the phrase "Â½ of 5 = 3," the riddle suggests that instead of using standard arithmetic, we should look for a pattern or a rule specific to this "certain country." Here, if we interpret "Â½" as a way of rounding up, then half of 5 (which is 2.5) rounded up gives us 3. Following this same logic for 1/3 of 10, we first calculate 1/3 of 10, which is approximately 3.33. If we round this up, we again arrive at 3. Hence, in this riddle, the answer is derived from the idea of rounding rather than precise division, making it a playful twist on mathematical expectations!

Common Wrong Answers

“2”

This guess assumes a straightforward mathematical calculation of 1/3 of 10, which is 3.33. Rounding down gives 3, but it ignores the unique rounding rule described in the riddle.

“4”

While 4 is close to the expected value when rounding, it misinterprets the rounding rule in the riddle. The riddle specifically leads to 3 as a more fitting answer based on the hint given.

“5”

This guess incorrectly assumes that the relationship between the fractions directly leads to a larger value, not recognizing the special rounding rule applied in the context of the riddle.

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