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The house of a row are numbered consecut...

The house of a row are numbered consecutively form 1 to 49. Show that there is a value of x such that the sum of the numbers of the house preceding the house numbered x is equal to the sum of the numbers of the houses following it. And find this value of x. [ Hint: `S_(x-1) = S_(49)-S_(x)`] 11

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VGS PUBLICATION-BRILLIANT-PROGRESSIONS-EXERCISE
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  2. A larger has rungs 25 cm apart. The rungs decrease uniformaly in lengt...

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  3. The house of a row are numbered consecutively form 1 to 49. Show that ...

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  4. A small terrace at a football ground comprises of 15 steps each of whi...

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  8. Write the common differnece of an Arithmetic Progression, whose n^(th)...

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  9. Find the sum of first 200 natural numbers.

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  10. Is 'zero' a term of the Arithmetic Progression 31, 28, 25, ….? Justify...

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  11. In a GP. t(n) = (-1)^(n). 2017. find the common ratio.

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  12. The nth term of an A.P. is 6n+2. Find the common difference. (x in N)

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  13. Is the sequence sqrt(3), sqrt(6), sqrt(9), sqrt(12),…… form an Arithme...

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  14. Radha says “1,1,1,… are in A.P and also G.P”.Do you agree with Radha,?...

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  15. In the AP -9 , -14, -19, -24, ……… a(30) - a(20) = ………….

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  16. Find the 11^th term of the A.P. : 15, 12, 9, .....

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  17. In a flower garden there are 23 plants in first row, 21 plants in seco...

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  18. If seven times of 7th term of an Arithmetic Progression is euqal to th...

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  19. Measures of sides of a triangle are in Arithmetic Progression. Its per...

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  20. Explain the terms in the formula. S(n) = n/2 [2a+(n-1)d].

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