Q. Which of the following is a Triangular number series?

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Q. Which of the following is a fibonacci series?

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Q. If a₁, a₂……… are in AP then a₁⁻¹, a₂⁻¹……… are in __________

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Q. The ninth term of 1⁄3, 1⁄7, 1⁄11, 1⁄15, 1⁄19,……… is given by?

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Q. If for some number a and d, if first term is 1⁄a, second term is 1/(a+d), thrid term is 1/(a+2d) and so on, then 5th term of the sequence is?

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Q. If a, b, c are in hp then a⁻¹, b⁻¹, c⁻¹ are in _________

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Q. If a, b, c are in hp, then b is related with a and c as _________

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Q. For number A, C if H is harmonic mean, G is geometric mean then H>=G.

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Q. For number B, C if H is harmonic mean, A is the airthmetic mean then H>=A.

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Q. Which of the following gives the right inequality for AM, GM, HM?

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Q. For two number a,b HM between them is given by?

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Q. If A, G, H are the AM, GM, HM between a and b respectively then?

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Q. The cardinality of the set A = {1, 2, 3, 4, 6} is?

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Q. For two equal sets there ___________

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Q. If A is a subset of B then _______

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Q. If there is a bijection between two sets A and B then _______

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Q. Let a set E ={0,2,4,6,8….} of non-negative even numbers and O = {1, 3, 5, 7, 9,…..} of non-negative odd numbers then?

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Q. Cardinality of the set of lower letter english alphabets is 26.

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Q. Cardinality of the set of even prime number under 10 is 4.

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Q. If for sets A and B there exists an injective function but not bijective function from A to B then?

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