If (64)2 - (36)2 = 20 x a, then a = ?
115
140
132
176
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1
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How many of the following numbers are divisible by 3 but not by 9. 4320, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276
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2
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(112 X 5^4)
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3
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1397 x 1397 = ?
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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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If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x + y = ?
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6
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The difference between the squares of two consecutive odd integers is always divisible by:
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7
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The smallest value of n, for which 2n+1 is not a prime number, is
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8
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Find the sum to 200 terms of the series 1 + 4 + 6 + 5 + 11 + 6 + ....
Solution |
9
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Which of the following is a prime number ?
Solution |
10
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How many of the following numbers are divisible by 132 ? 264, 396, 462, 792, 968, 2178, 5184, 6336
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