CTET 2 Math and Science Dec 2019 Paper

Volume of a godown = 56 m × 42 m × 10 m
and volume of a box = 2.8 m × 2.5 m × 70 cm
= 2.8 m × 2.5 m × $\frac{70}{100}$ m
= 2.8 m × 2.5 m × 0.7m
Therefore, the number of cuboidal boxes $=\frac{56\times 42\times 10}{2.8\times 2.5\times 0.7}$
$=\frac{56\times 10\times 42\times 10\times 10\times 10}{28\times 25\times 7}$
= 2 × 10 × 6 × 10 + 4 = 4800 m.