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If the remainder obtained by subtracting a number from its own square is 4 times the number, what is the number ? (a) 4 (b) 3 (c) 6 (d) 5 |
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Answer» (d) 5 Let the number be x. Then, x2 – x = 4x \(\Rightarrow\) x2 = 5x \(\Rightarrow\) x = 5 |
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