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| 1. |
In expressing a length 81.472 km as nearly as possible with three significant digits, the per cent error is (a) 0.34% (b) 0.034% (c) 0.0034% (d) 0.0038% |
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Answer» (b) 0.034% 81.472 km = 81472 meters = 81500 meters with three significant digits \(\therefore\) Error% = \(\frac{81500-81472}{81472}\) x 100 = 0.034% |
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