Tick (✓) the correct answer:


Tick (✓) the correct answer:

A rectangular water reservoir contains 42000 litres of water. If the length of reservoir is 6 m and its breadth is 3.5 m, the depth of the reservoir is

(a) 2 m

(b) 5 m

(c) 6 m

(d) 8 


(a) $2 \mathrm{~m}$

$42000 \mathrm{~L}=42 \mathrm{~m}^{3}$

Volume $=l b h$

$\therefore$ Height $(h)=\frac{\text { volume }}{l b}=\frac{42}{6 \times 3.5}=\frac{6}{6 \times 0.5}=2 \mathrm{~m}$

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