A rectangular water reservoir contains 42000 litres of water. If the length of reservoir is 6 m and breadth… · ABC26GN4787
Subject: General Aptitude · Chapter: Volume and Surface Area · Exam: R.R.B. 2006
A rectangular water reservoir contains 42000 litres of water. If the length of reservoir is 6 m and breadth of the reservoir is 3.5 m, then the depth of the reservoir will be
(a)2 m
(b)5 m
(c)6 m
(d)8 m
Answer
Answer (as printed): A
Explanation
Volume of the reservoir $=42000$ litres $=42 \mathrm{m}^{3}$. Let the depth of the reservoir be $h$ metres. $$\text { Then, } 6 \times 3.5 \times h=42 \text { or } h=\frac{42}{6 \times 3.5}=2 \mathrm{m} \text {. }$$