In an A.P., if d = -4, n = 7, an = 4, then a is
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If the nth term of an A.P. is 2n + 1, then the sum of first n terms of the A.P. is
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2
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If 18, a, b - 3 are in A.P. then a + b =
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3
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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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4
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The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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5
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The sum of n terms of an A.P. is 3n2 + 5n, then 164 is its
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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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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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8
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If 18th and 11th term of an A.P. are in the ratio 3 : 2, then its 21st and 5th terms are in the ratio
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9
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If the sum of p terms of an A.P. is q and the sum of q terms is p, then the sum of (p + q) terms will be
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10
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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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