If the 5^{th} term of an A.P. is 31 and 25^{th} term is 140 more than the 5^{th} term. find the A.P.
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Find the sum to n terms of the A.P., whose n^{th} term is 5n + 1
The tenth term common to both the A. P. 3, 7, 11, ... and 1, 6, 11, ... is:
Find the sum of all numbers divisible by 6 in between 100 to 400
If fourth term of an A.P. is zero, then t_{25}/t_{11} is, where t_{n} denotes the nth
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The eighth term of an A.P. is half of its second term and the eleventh term exceeds one third of its fourth term by 1. Find the 15^{th} term.
The common difference of an A.P., the Sum of whose x terms is S_{n}, is
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The sum of (p + q)^{th }and (p – q)^{th} terms of an AP is equal to
In an A.P. twenty fifth term is 70 more than to fifteenth term. Find the common differences.
If the first term of an AP is 2 and the sum of the first five terms is equal to onefourth of the sum of the next five terms, then what is the sum of the first ten terms?
314 videos170 docs185 tests

314 videos170 docs185 tests
