The sum of first n odd natural numbers in
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1
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What is the sum of all positive integers up to 1000, which are divisible by 5 and are not divisible by 2?
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2
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The first term of an Arithmetic Progression is 22 and the last term is 11. If the sum is 66, the number of terms in the sequence are:
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3
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If a + 1, 2a + 1, 4a  1 are in A.P., then the value of a is:
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4
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If a, b, c are in A.P., then (a – c)^{2}/ (b^{2} – ac) =
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5
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The sum of first five multiples of 3 is:
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6
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If the fifth term of a GP is 81 and first term is 16, what will be the 4th term of the GP?
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7
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The 3rd and 8th term of an arithmetic progression are 13 and 2 respectively. What is the 14th term?
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8
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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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9
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If k, 2k – 1 and 2k + 1 are three consecutive terms of an AP, the value of k is
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10
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The 3rd and 7th term of an arithmetic progression are 9 and 11 respectively. What is the 15th term?
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