Mathematics for IGCSE & O level - Limits Of Accuracy (Section 2 - No. 41)
Pencils have a width of 8 mm, to the nearest millimetre. What is the smallest total width of 10 pencils?
70 mm
75 mm
70.5 mm
75.5 mm
Explanation
Smallest Width: Lower bound, which is 7.5. So 10 x 7.5 = 75mm
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