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If a, b, c are positive real numbers, th...

If a, b, c are positive real numbers, then the least value of `(a+b+c)((1)/(a)+(1)/(b)+(1)/( c ))`, is

A

1

B

9

C

12

D

none of these

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The correct Answer is:
B
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ARIHANT SSC-ELEMENTS OF ALGEBRA-EXERCISE(LEVEL 1)
  1. If x, y, z are real numbers such that x+y+z=4 and x^(2)+y^(2)+z^(2)=6,...

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  2. If x=7+4sqrt(3)\ \ a n d\ x y=1 , then 1/(x^2)+1/(y^2)= 64 (b) 134...

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  3. If a, b, c are positive real numbers, then the least value of (a+b+c)(...

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  4. If a, b are postitive real numbers such that ab=1, then the least valu...

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  5. If a, b, c all positive and not euqal, then the value of ((a+b+c)(ab+b...

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  6. If a, b, c are all positive integers, then the minimum value of the ex...

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  7. If 1lexle3 and 2leyle4, what is the maximum value of ((x)/(y))?

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  8. If a + b + c = 3, a^(2) + b^(2) + c^(2) = 6 and (1)/(a) + (1)/(b) + (...

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  9. IF 2^x=4^y=8^z and xyz=288 then 1/(2x)+1/(4y)+1/(8z)=……………

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  10. If a^x=b ,b^y=c ,c^z=a , then find the value of x y zdot

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  11. Let x, y in N and 7x+12y=220. The number of solutions :

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  12. If a^(x)=(x+y+z)^(y), a^(y)=(x+y+z)^(z), a^(z)=(x+y+z)^(x), then :

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  13. If (x)/(a)=(y)/(b)=(z)/(c) then xy+yz+zx is equal to :

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  14. In the farm - house of Bhuwan Kisan, there were total 14 deer and duc...

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  15. In an autofair at Pragati Maidan, New Delhi, there are 600 vehicles co...

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  16. In the battle of Mahabharat Veer Arjun destroyed all the 125 raths (ho...

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  17. In an electric appliances shop there were some fans and coolers contai...

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  18. In the air talent show in the eve of independence day 90 aircraft (onl...

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  19. Every man in a group of 20 men likes either mangoes or an apple. Every...

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  20. In a mixture of milk and water of the volume of 60l the ratio of milk ...

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