This problem went viral in Japan after a study found 60 per cent of 20 somethings could get the correct answer, down from a rate of 90 per cent in the 1980s.

The problem
What is 9 – 3 ÷ 1/3 + 1 = ?
What do you think the answer is?
We explain the correct answer by using the order of operations. Get an explanation of the solution

Click Here To See The Incredible Missing Number Puzzle

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