The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is:
3/5
3/10
4/5
4/3
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1
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The smallest value of n, for which 2n+1 is not a prime number, is
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2
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72519 X 9999
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3
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What is the unit digit { (6374)^1793 X (625)^317 X (341)^491 }
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4
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The Unit digit in the product (784 X 618 X 917 X463)
Solution4 X 8 X 7 X 3 |
5
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The sum of first 45 natural numbers is:
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6
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If x is a whole number, then x²(x² - 1) is always divisible by
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7
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(12)3 x 64 ÷ 432 = ?
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8
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(1000)^9 / 10^24 =
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9
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A 3-digit number 4p3 is added to another 3-digit number 984 to give the four-digit number 13q7, which is divisible by 11. Then, (p + q) is :
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10
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476 ** 0 is divisible by both 3 and 11.The non zero digits in the hundred's and ten's places are respectively:
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