I am a number less than 100. If you divide me by 2 and then add 30, you will get 70. What number am I?
Category: Math · Difficulty: medium
Hint: Reverse the operations to find the answer.
Answer
80
Explanation
If x/2 + 30 = 70, then x/2 = 40, thus x = 80.
This is a medium math riddle — a moderate challenge for most people. The answer is 80.
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