In an A.P., if d = 4, n = 7, a_{n} = 4, then a is
6
7
20
28
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1
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If the sum of three consecutive terms of an increasing A.P. is 51 and the product of the first and third of these terms is 273, then the third term is :
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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3
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Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = S_{n} – k S_{n1} + S_{n2} then k =
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4
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The sum of first five multiples of 3 is:
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5
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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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6
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What is the sum of the first 12 terms of an arithmetic progression if the first term is 19 and last term is 36?
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7
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Which term of the A.P. 24, 21, 18, ............ is the first negative term?
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8
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The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
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9
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The two geometric means between the number 1 and 64 are
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10
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The sum of first five multiples of 3 is:
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