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If the sum of the series 2, 5, 8, 11,… i...

If the sum of the series 2, 5, 8, 11,… is 60100, then n is

A

300

B

200

C

100

D

150

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The correct Answer is:
B
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ML KHANNA-PROGRESSIONS -SELF ASSESSMENT TEST
  1. Let T(r) be the rth term of an AP, for r=1,2,… If for some positive in...

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  2. If the sum of the series 2, 5, 8, 11,… is 60100, then n is

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  3. If the numbers a , b , c , d , e form an A.P. , then find the value of...

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  4. If a(1), a(2),…, a(n +1) are in A.P., then (1)/(a(1)a(2)) + (1)/(a(2)a...

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  5. If log 2, log (2^(n) - 1) and log(2^(n) + 3) are in A.P., then n =

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  6. In a G.P. if the (m + n)^(th) term be p and (m - n)th term be q, then ...

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  7. If the fifth term of a G.P. is 2, then write the product of its 9 t...

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  8. If 1 + sin x + sin^(2) x +.....+ oo = 4 + 2 sqrt(3), 0 lt x lt pi and...

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  9. If x,y,z are in HP, then log(x+5)+log (x-2y+z) is equal to

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  10. If H be the harmonic mean between x and y, then show that (H+x)/(H-x)+...

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  11. In a H.P., p^(th) term is q and q^(th) term is p then pq^(th) term is

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  12. The harmonic mean of (a)/(1 - ab) and (a)/(1 + ab) is

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  13. If b^(2), a^(2), c^(2) are in A.P., then a + b, b + c, c + a will be i...

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  14. If (x + y)/(2), y ,(y + z)/(2) are in H.P., then x, y, z are in

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  15. If a,b,c are in A.P., then 2^(ax+1),2^(bx+1),2^(cx+1), x in R, are in

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  16. If a, ,b c, are in G.P., then log(a) n, log(b) n, log(c) n are in

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  17. For all ngeq1, prove that 1/(1. 2)+1/(2. 3)+1/(3. 4)+dotdotdot+1/(n(n+...

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  18. The value of underset(i=1)overset(n)sumunderset(j=1)overset(i)sumunde...

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  19. 11^(3)+12^(3)+13^(3)+………….+20^(3) is

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  20. For any integer n ge 1, the sum sum(k=1)^(n) k (k + 2) is equal to

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