If 18, a, b - 3 are in A.P. then a + b =
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If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___
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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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3
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What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?
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4
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The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?
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5
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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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6
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The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is
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7
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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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8
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The two geometric means between the number 1 and 64 are
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9
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After striking the floor, a rubber ball rebounds to 4/5th of the height from which it has fallen. Find the total distance that it travels before coming to rest if it has been gently dropped from a height of 120 metres.
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10
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A bacteria gives birth to two new bacteria in each second and the life span of each bacteria is 5 seconds. The process of the reproduction is continuous until the death of the bacteria. initially there is one newly born bacteria at time t = 0, the find the total number of live bacteria just after 10 seconds :
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