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A metal bar is 20 metres long. After heating its lengthincreases by 2%. What is the new length? |
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Answer» Answer: 20.4 metresBECAUSE Length Before HEATING = 20m Length After Heating = 20 + 2% of 20 20 + 2/100 × 20 20 + 0.4 = 20.4m Thanks |
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