Using Four 7’s And one 1 Create The Number 100
Time to test your mathematical skills. Solve this riddle and get the right answer.
Using four sevens (7) and a one (1) create the number 100. Except the five numerals you can use the usual mathematical operations (+, -, x, /), root and brackets ()
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Answer:
You can get 100 in the following ways;
i) 177 – 77 = 100
ii) (7+7)x(7+(1/7)) = 14 x ((49 + 1)/7) = 2 x 50 = 100.