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    3/7 of what number is 9?

    0  Views: 1261 Answers: 3 Posted: 12 years ago

    3 Answers

    21

    Let the number be y, then


    3/7 of y = 9


    or, y = 9*7/3 = 21


    Hence the required number is 21.


     

    3 x 7 =  21 or Blackjack!



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