while measuring the length of a pencil the reading of the scale at one end is 5.5 cm and that at other end is 17.2 cm what is the length of the pencil

THE ANSWER IS 11.7
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11.2
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How it came
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11.7
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17.2-5.5
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Subract it from 17.2 from 5.5
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17.2-5.5=11.3
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