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If the sum of first k terms of an A.P. i...

If the sum of first k terms of an A.P. is `3k^2-k` and its common difference is 6. What is the first term ?

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OSWAL PUBLICATION-ARITHMETIC PROGRESSIONS -SELF ASSESSMENT-2
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  2. If n^(th) term of an A.P. is (2n + 1), what is the sum of its first t...

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  3. If the sum of first k terms of an A.P. is 3k^2-k and its common diffe...

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  4. If the n^(th) term of an A.P. is 7-3n, find the sum of twenty five t...

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  6. If the sum of the first 9 terms of an A.P. is 81 and that of the firs...

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  7. Find the sum of all two digit natural numbers which are divisible by ...

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  8. Find the sum of the integers between 100 and 200 that are divisible by...

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  9. Find the sum of all odd numbers lying between 100 and 200.

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  10. If the sum of first 14 terms of an A.P. is 1050 and its first term is ...

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  11. The sum of four consecutive numbers in an A.P. is 52 and the ratio of...

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