1 9 Divided By 3

A contempo test constitute only threescore% of Japanese 20 year olds were able to solve the following question. In the 1980s a study constitute 90% could solve it. The drop in operation acquired quite a stir.

Can you lot effigy information technology out?

Watch the video for my caption of the correct reply.

9 – 3 ÷ 1/3 + 1 = ? Viral Problem From Nippon. Correct Answer Explained

Or keep reading for a text explanation.
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"All will be well if you use your mind for your decisions, and listen merely your decisions." Since 2007, I have devoted my life to sharing the joy of game theory and mathematics. MindYourDecisions now has over ane,000 free articles with no ads cheers to customs support! Assistance out and get early access to posts with a pledge on Patreon.

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*For those that cannot watch, the correct reply is 1.

The most common mistake is writing the one/3 equally:

9 – three ÷ i/3 + 1

Most calculators will not group the 1/three, so the calculator evaluates:

9 – three/ane/3 + 1
= ix – 3/3 + 1
= 9 – 1 + 1
= 9

The correct answer is found past grouping i/three with parentheses and following the order of operations, with division taking precedence.

9 – 3 ÷ (1/3) + 1
= 9 – 9 + i
= 0 + 1
= 1

The correct answer is 1.

Source (English)
http://en.rocketnews24.com/2015/12/05/does-this-math-problem-bear witness-that-japans-20-somethings-are-getting-dumber/

Sources (Japanese)
http://www.j-cast.com/2015/12/03252296.html?p=all
http://www.yukawanet.com/athenaeum/4618548.html

Full study (in Japanese, run into page 20 of document). I relied on the English language source listed higher up and Google translations other Japanese media who interpreted the statistics.
https://www.chukeiren.or.jp/wp/wp-content/uploads/assets/policy_proposal/pdf/01.Teigensyo.pdf

PRESH TALWALKAR

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