What is the sum of the first 11 terms of an arithmetic progression if the 3rd term is -1 and the 8th term is 19?
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1
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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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2
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The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?
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3
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The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
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4
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In an A.P., if d = -4, n = 7, an = 4, then a is
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5
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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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6
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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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7
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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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8
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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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9
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In an A.P., if d = -4, n = 7, an = 4, then a is
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10
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How many 2-digit positive integers are divisible by 4 or 9?
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