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In an A.P., the first term is 2 and the sum of the first five terms is one-fourth of the next five terms. Show that 20th term is -112.

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In an A.P.,the first term is 2 and the sum of the first five terms is one-fourth of the next five terms.Show that 20 th term is -112

In an A.P.the first term is 2 and the sum of the first five terms is one fourth of the next five terms.Show that 20 th term is -112.

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If the first term of an AP is 2 and the sum of the first five terms is equal to one-fourth of the sum of the next five terms, then what is the sum of the first ten terms?

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MODERN PUBLICATION-SEQUENCES AND SERIES-NCERT FILE QUESTIONS FROM NCERT BOOK (EXERCISE 9.2 )
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  8. If the sum of n terms of an A.P. is (pn+qn^(2)), where p and q are con...

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  9. The sum of n terms of two arithmetic progressions are in the ratio 5n+...

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  10. If the sum of first p terms of an A.P. is equal to the sum of the firs...

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  14. Insert five numbers between 8 and 26 such that the resulting sequence ...

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