The common difference of the A.P. \(\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}\) . . . . . . is
\(\frac{1}{3}\)
\( - \frac{1}{3}\)
-b
b
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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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The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?
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3
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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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4
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How many terms are there in the GP 5, 20, 80, 320........... 20480?
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5
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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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6
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The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is
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7
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If the sums of n terms of two arithmetic progressions are in the ratio \(\frac{{3n + 5}}{{5n + 7}}\) then their nth terms are in the ration
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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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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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If four numbers in A.P. are such that their sum is 50 and the greatest number is 4 times the least, then the numbers are
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