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Question

Question: The value of <img src="https://cdn.pureessence.tech/canvas_459.png?top_left_x=1329&top_left_y=1501&w...

The value of is .

A

232990\frac { 232 } { 990 }

B

2329990\frac { 232 } { 9990 }

C

232990\frac { 232 } { 990 }

D

2329909\frac { 232 } { 9909 }

Answer

232990\frac { 232 } { 990 }

Explanation

Solution

0.23¨4˙=0.23434340.2 \ddot { 3 } \dot { 4 } = 0.2343434 \ldots.

=0.2+0.034+0.00034+0.0000034+0.2 + 0.034 + 0.00034 + 0.0000034 + \ldots \ldots

=0.2+341000+34100000+3410000000+..0.2 + \frac { 34 } { 1000 } + \frac { 34 } { 100000 } + \frac { 34 } { 10000000 } + \ldots . . \infty

=210+34[1/10311/1000]=210+34×11000×10099= \frac { 2 } { 10 } + 34 \left[ \frac { 1 / 10 ^ { 3 } } { 1 - 1 / 1000 } \right] = \frac { 2 } { 10 } + 34 \times \frac { 1 } { 1000 } \times \frac { 100 } { 99 }

=210+34990=232990= \frac { 2 } { 10 } + \frac { 34 } { 990 } = \frac { 232 } { 990 }.