There is an illustration that has made its way around social media which goes something like this… One day, a school teacher wrote the following on a chalkboard, 9×1=7 9×2=18 9×3=27 9×4=36 9×5=45 9×6=54 When he was finished he looked to his students and the class began to laugh. When he asked them why, one student pointed out that the…
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