JAMB 1991 · UME · Q4

Approximation & error

Express $\frac{62}{3}$ as a decimal correct to 3 significant figures.

Worked solution (try it first)

Divide: $\frac{62}{3} = 20.666\ldots$
Three significant figures are 2, 0 and 6.
The next figure is 6, so round up: 20.7, option D.

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