Mathematics for IGCSE & O level - Limits Of Accuracy (Section 3 - No. 3)
A length of string is measured to be 27 cm to the nearest cm. Between which values must the actual length lie?
26 cm - 28 cm
26.5 cm - 27.5 cm
25 cm - 29 cm
25.5 cm - 27.5 cm
Explanation
When rounding to the nearest centimetre, the lower bound is 0.5 less and the upper bound is 0.5 more.
Comments (0)
