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Q.
(10.3 * 10.3 * 10.3 + 1)/(10.3 * 10.3 - 10.3 + 1) is :
A.
11.3
B.
11.3
C.
13.3
D.
14.3
View Answer
Correct choice: A
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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