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Aptitude - Decimal Fraction - Discussion

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"Love is like a war, Easy to begin Hard to end."
- (Proverb)
4. 

The value of 0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 is:
0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04

[A]. 0.0125[B]. 0.125
[C]. 0.25[D]. 0.5

Answer: Option A

Explanation:

Given expression = (0.1)3 + (0.02)3 = 1 = 0.125
23 [(0.1)3 + (0.02)3] 8

Acharya said: (Thu, Apr 14, 2011 03:06:30 PM)    
 
How is it explain please.
Sarada said: (Fri, Aug 19, 2011 11:21:00 AM)    
 
How can you common 2^3 from denominator?
Sukeshani Kadam said: (Fri, Sep 9, 2011 12:34:27 PM)    
 
I don't understand this proble. Please explain
Anusha said: (Thu, Sep 15, 2011 06:47:02 PM)    
 
In denominator 0.2 three times multiplied means (0.2)^3 and 0.04 also three times multiplied means (0.04)^3 so from both fractions we taking 2^3 common

[0.2)^3+(0.04)^3]
2^3[(0.1)^3+(0.02)^3

Then numerator and denominator having same value so they canceled each other 2^3 means 8
1/8 =0.125
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