The sum of first 49 natural numbers is ?
1275
1225
1205
1185
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1
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Which one of the following numbers is exactly divisible by 11?
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2
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If x is a whole number, then x²(x² - 1) is always divisible by
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3
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(112 x 54) = ?
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4
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(935421 x 625) = ?
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5
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The smallest value of n, for which 2n+1 is not a prime number, is
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6
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What is the number in the unit place in (729)59?
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7
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What is the unit digit in {(6374)1793 x (625)317 x (341491)}?
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8
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The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
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9
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The digit in unit’s place of the product 71 × 72 × ..... × 79 is
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10
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217 X 217 + 183 X 183
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