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Make a rule between the number of blades required and the number of fans (say n) in a hall. |
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Answer» Number of blades for one fan = 3 = 1 × 3 Number of blades for two fans = 3 + 3 = 2 × 3 Number of blades for three fans = 3 + 3 + 3 = 3 × 3 Number of blades for four fans = 3 + 3+ 3 + 3 = 4 × 3 ……………………………………… Number of blades for n fans = 3 + 3 + …. (n times) = 3 × n Rule of number of blades required for n fans = 3.n |
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