# Mathematical Reasoning - Number Series

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• Option : B
• Explanation : × 10 − 100, × 10 − 100 and so on.

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• Option : D
• Explanation : The pattern is +5, −2, +5, −2, … Hence, the missing term = 36 − 2 = 34

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• Option : B
• Explanation : The sum of any three consecutive terms of the series is given to the next term. Hence, missing number = 8 + 15 + 27 = 50.

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• Option : A
• Explanation : The second number is the square of the first number; the fourth number is the square of the third number. Similarly, the sixth number should be the square of fifth. Hence, the answer is 16, i.e., square root of 256.

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• Option : D
• Explanation : The numerator increases by addition of 2, 3, 4 and 5.
The denominator increases by addition of 4, 6, 8 and 10.

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Related Quiz.
Number Series