A Math Trick That Always Ends in a Surprise
Riddle:
Pick any number between 1 and 10, double it, add 8, divide by 2, then subtract the original number. What’s the result?
Answer:
Answer: 4. Explanation: Let x be the number. (2x + 8) / 2 = x + 4 → x + 4 − x = 4.