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The 14^(th) term of an AP is twice 8^(th...

The `14^(th)` term of an AP is twice `8^(th)` term. If its `6^(th)` term is -8, then find the sum of its first 20 terms.

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AGRAWAL PUBLICATION-ARITHMETIC PROGRESSIONS-EXAMPLE
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  3. The 14^(th) term of an AP is twice 8^(th) term. If its 6^(th) term is ...

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  5. The digits of a positive number of three digits are in A.P and their s...

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  7. Determine the A.P. whose third term is 16 and 7^(th) term exceeds the ...

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  8. The 26^(th), 11^(th) and the last term of an AP are 0,3 and 1/5 respec...

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  9. Find the sum of the following series: 5 +(-41) 9 +(-39) + 13 + (-37) ...

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  10. The sum of four consecutive number in AP is 32 and the ratio of the pr...

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  11. Solve : 1 +4 +7 + 10 +…….+ x=287.

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  12. The sum of the first 5 terms of an AP and the sum of the first 7 terms...

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  13. Find the sum of those integers between 1 and 500 which are multiples ...

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  14. Find the sum of those integers from 1 to 500 which are multiples of ...

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  15. Find the sum of those integers from 1 to 500 which are multiplies of...

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  16. An AP consists of 37 terms. The sum of the 3 middle most terms is 225 ...

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  17. If the sum of the first 'p' terms of an A.P is 'q' and sum of the firs...

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  19. Find the sum of the integers between 100 and 200 that are: not divisi...

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  20. Which term of the Arithmetic Progression -7, -12, -17, -22, …. Will be...

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