Question

What is the largest possible length of a scale that can be used to measure exactly the lengths 3m, 5m 10 cm,12m 90cm? a.10 cm b.20 cm c.25 cm d. 30 cm

Answer 1

it should be 30cm as you can measure 3,5,10and12 very easily in it and 3times the scale you get 90cm

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