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प्रश्न
While measuring the length of a sharpened pencil, the reading of the scale at one end is 2.0 cm and at the other end is 12.1 cm. What is the length of the pencil?
उत्तर
The difference between the two readings is the length of the pencil.
= 12.1 cm – 2.0 cm
= 10.1 cm or 10 cm and 1 mm.
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