JAMB 1987 · UME · Q4

Reduce each number to two significant figures and then evaluate $\dfrac{0.02174 \times 1.2047}{0.023789}$ .

Worked solution (try it first)

Round each number to 2 significant figures: $0.02174 \to 0.022$ , $1.2047 \to 1.2$ and $0.023789 \to 0.024$ .
Top: $0.022 \times 1.2 = 0.0264$ .
Divide: $0.0264 \div 0.024 = 1.1$ , option C.