Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is
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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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The sum of the first and third term of an arithmetic progression is 12 and the product of first and second term is 24, then first term is
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3
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If S1 is the sum of an arithmetic progression of ‘n’ odd number of terms and S2 is the sum of the terms of the series in odd places, then \(\frac{{{S_1}}}{{{S_2}}}\)
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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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The sum of the first 16 terms of an AP whose first term and third term are 5 and 15 respectively is
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6
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The sum of first five multiples of 3 is:
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7
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If an A.P. has a = 1, tn = 20 and sn = 399, then value of n is :
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8
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What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?
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9
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If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be
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(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n  1 times) = ......
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