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
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