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Aptitude - Decimal Fraction - Discussion

Discussion Forum : Decimal Fraction - General Questions (Q.No. 3)
Decimal Fraction
3.

The value of (0.96)3 - (0.1)3 is:
(0.96)2 + 0.096 + (0.1)2
0.86
0.95
0.97
1.06
Answer: Option
Explanation:
Given expression
= (0.96)3 - (0.1)3
(0.96)2 + (0.96 x 0.1) + (0.1)2
= a3 - b3
a2 + ab + b2
= (a - b)
= (0.96 - 0.1)
= 0.86
Discussion:
22 comments Page 3 of 3.
Jagga said:   4 years ago
a^3-b^3 = (a-b)(a^2+2ab+b^2).
(2)
Suruthi durai said:   2 years ago
Numerator:a^3-b^3=(a-b)(a^2+ab+b^2).
Denominator:a^2+ab+b^2.
Numerator/denominator = a-b.
= 0.96 - 0.1.
= 0.86.
(5)
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