A rectangular floor measures $1.2 \times 10^{2}$ m by $5 \times 10^{1}$ m. Its area is

A rectangular floor measures $1.2 \times 10^{2}$ m by $5 \times 10^{1}$ m. Its area is
  1. $6 \times 10^{3}$ m$^{2}$
  2. $6 \times 10^{2}$ m$^{2}$
  3. $1.7 \times 10^{3}$ m$^{2}$
  4. $6 \times 10^{4}$ m$^{2}$

Solution

Area $= 1.2 \times 10^{2} \times 5 \times 10^{1} = 6 \times 10^{3}$ m$^{2}$.

Asked in: NSO

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