The sum of first five multiples of 3 is:
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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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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 = Sn – k Sn-1 + Sn-2 then k =
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The common difference of the A.P. \(\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}\) . . . . . . is
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4
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How many 2-digit positive integers are divisible by 4 or 9?
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5
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Find the nth term of the following sequence :
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6
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15th term of A.P., x - 7, x - 2, x + 3, ........ is
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7
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If three numbers be in G.P., then their logarithms will be in
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8
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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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9
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Find the 15th term of the sequence 20, 15, 10 . . . . .
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10
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The sum of first five multiples of 3 is:
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