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Question

If 13+23+....+p3=2025, then the value of (0.11)3+(0.22)3+.....+(0.99)3 is close to:

A
0.2695
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B
0.3695
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C
2.695
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D
3.695
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Solution

The correct option is C 2.695
(0.11)3+(0.22)3+...+(0.99)3=(0.11)3(13+23+...+93)=0.001331×2025=2.695275=2.695.

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