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৪৬. If (89)2 is added to the square of a number, the answer so obtained is 16292. what is the 126 of that number?

৪৬. If (89)2 is added to the square of a number, the answer so obtained is 16292. what is the 126 of that number? Correct Answer 3.50

ATQ, (89)2 + x2 = 16202 Or, x2 = 16202 – (89)2 = 16202 – 7921 = 8281 .::x = √(8281) = ±91 Now, 1/26 of 91 = 3.50 ans: 3.50

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