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If ab^2c^3,a^2b^3c^4,a^3b^4c^5 are in A...

If `ab^2c^3,a^2b^3c^4,a^3b^4c^5 ` are in AP (a,b,cgt0) thgen the minimum value of a+b+c is

A

1

B

3

C

5

D

9

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The correct Answer is:
C
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PATHFINDER-PROGRESSION AND SERIES -QUESTION BANK
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  2. The sum of the integer from 1 to 100 which is not divisible by 3 or 5 ...

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  3. If ab^2c^3,a^2b^3c^4,a^3b^4c^5 are in AP (a,b,cgt0) thgen the minimum...

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  4. If the sum of n terms of the series 1/1^3+(1+2)/(1^3+2^3)+(1+2+3)/(1^3...

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  5. The coefficient of x^(n-2) in the polynomial (x-1)(x-2)(x-3)....(x-n) ...

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  6. The series of natural number is divided into groups as follows , (1), ...

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  7. The sum of 10 terms of the series (x+1/x)^2+(x^2+1/x^2)^2+(x^3+1/x^3)...

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  8. If the sequence 1,2,2,4,4,4,4,,8,8,8,8,8,8,8,8,.... where n consecutiv...

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  9. Sum of n terms of the series (2n-1)+2(2n-3)+3(2n-5)+.... is

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  10. The cubes of the natural numbers are grouped as 1^3,(2^3,3^3),(4^3,5^3...

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  11. Let f(n)=[1/2+n/100] where [x] denote the integral part of x. Then th...

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  12. ABC is a right angled triangle in which angleB=90^@ and BC=a. If n poi...

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  13. If a,b,c are three distinct positive real number such that a^2+b^2+c^2...

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  14. The sum of the series 1^3 - 2^3 + 3^3 - ....+ 9^3=

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  15. If x1, x2 , x3 and y1 , y2 , y3 are both in G.P. with the same common ...

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  16. Let two numbers have arithmetic mean 9 and geometric mean 4. Then thes...

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  17. The sum of the first n terms of the series 1^2+2.2^2+3^2+2.4^2+5^2+2.6...

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  18. Let a1 , a2 , a3,.... be terms of an A.P. if (a1 + a2 +....+ ap)/(a1 +...

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  19. If a1,a2,.....an are in H.P., then the expression a1a2 + a2a3 + ... + ...

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  20. If the sum of first n natural numbers is 1/5 times the sum of their sq...

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