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(10.3 * 10.3 * 10.3 + 1)/(10.3 * 10.3 - 10.3 + 1) is :

Correct Answer: 11.3

Explanation:

a^3 + b^3 = (a+ b) * (a^2 + b^2 - ab)


[ (10.3)^3 + (1)^3 ] / [(10.3)^2  + (1)^2 - (1 * 10.3)]


 => a + b = 10.3 + 1 = 11.3 


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