Mathematics for IGCSE & O level - Limits Of Accuracy (Section 2 - No. 3)
A measurement of 10 cm is given to the nearest 10 cm. Between what values must the actual measurement lie?
0 cm and 20 cm
5 cm and 15 cm
9.5 cm and 10.5 cm
0 cm and 10 cm
Explanation
When rounded to the nearest 10cm, the measurement is 10cm, therefore it can be no less than 5cm and no greater than 15cm
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