a) 75 cu. m
b) 750 cu. m
c) 7500 cu. m
d) 75000 cu. m
Answer: b
Explanation:
$$\eqalign{
& {\text{1}}\,{\text{hectare}} = 10000\,{m^2} \cr
& {\text{So,}}\,{\text{Area}} = \left( {1.5 \times 10000} \right){m^2} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 15000\,{m^2} \cr
& {\text{Depth}} = \frac{5}{{100}}m = \frac{1}{{20}}m \cr
& {\text{Volume}} = \left( {{\text{Area}}\, \times \,{\text{Depth}}} \right) \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = \left( {15000 \times \frac{1}{{20}}} \right){m^3} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 750\,{m^3} \cr} $$
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