$(2.4 \times 10^{3})\div (8 \times 10^{-2})=?$
$(3 \times 10^{-5})$
$(3 \times 10^{4})$
$(3 \times 10^{5})$
30
Explanation:
$=(2.4 \times 10^{3})\div (8 \times 10^{-2})$
$=\dfrac{24 \times 10^{2}}{8 \times 10^{-2}}$
$=(3\times 10^{4})$