A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 98 are wrong and the other digits are correct , then the correct answer would be :
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1
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107 x 107 + 93 x 93 = ?
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10
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Which one of the following numbers is exactly divisible by 11?
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2
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Find the last unit digit of 55^5 ( Using Euler Theorem)
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3
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The largest natural number which exactly divides the product of any four consecutive natural numbers is:
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4
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3897 X 999
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5
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The largest 4 digit number exactly divisible by 88 is:
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6
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The smallest value of n, for which 2n+1 is not a prime number, is
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7
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If -1 ≤ a ≤ 2 and 1 ≤ b ≤ 3, then least possible value of (2a – 3b) is:
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8
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(112 x 54) = ?
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9
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If x is a whole number, then x²(x² - 1) is always divisible by
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