Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 94)
94.
768 x 768 x 768 + 232 x 232 x 232 = ?
768 x 768 - 768 x 232 + 232 x 232
1000
536
500
268
None of these
Answer: Option
Explanation:
Given Exp. = (a3 + b3) = (a + b) = (768 + 232) = 1000
(a2 - ab + b2)
Discussion:
3 comments Page 1 of 1.

Xyz said:   6 years ago
Here the formula is;

(a3 + b3) = (a + b)(a2 - ab + b2)
So, (a3 + b3)/(a2 - ab + b2)=(a+b)
In the given question a is taken as 768 and b as 232.
Therefore,(a+b)=768+232=1000.

Rajalakshmi said:   6 years ago
I can't understand it, pleas help me.

Sumon said:   6 years ago
I can't understand please help me by explaining the answer.

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