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MATHEMATICS

JAMB 2012 - Question 4

Mathematics 2012 JAMB Past Questions - Question 4: Evaluate 21/9 to 3 significant figures.

Evaluate 21/9 to 3 significant figures.

A: 2.30

B: 2.31

C: 2.32

D: 2.33

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Correct Answer

Explanation

To evaluate 21/9 to 3 significant figures, we divide 21 by 9:21 ÷ 9 = 2.333333...Rounding to 3 significant figures, we look at the fourth digit after the decimal point, which is 3. Since it is less than 5, we round down the last significant figure:2.33Therefore, 21/9 evaluated to 3 significant figures is approximately 2.33.