A rectangular water reservoir contains 126 kilolitres of water The depth of the reservoir is 3 5 m a...........

Quantitative Aptitude (MTS) Mensuration 2D

A rectangular water reservoir contains 126 kilolitres of water. The depth of the reservoir is 3.5 m and its length measures 8 m.

What is the width of the reservoir?

This questions was previously asked in

SSC MTS 11th October 2021 Shift-2

8.5 m

4.2 m

4 m

5 m

Let's break it down:

- Volume of reservoir = 126 kilolitres = 126,000 litres = 126 cubic metres (since 1 kilolitre = 1 cubic metre)

- Volume formula for a cuboid (reservoir): Length × Width × Depth

- Given: Depth = 3.5 m, Length = 8 m

- So, 8 × Width × 3.5 = 126

- 8 × 3.5 = 28

- So, Width = 126 ÷ 28 = 4.5 m

Options:

- Option 1: 8.5 m

- Option 2: 4.2 m

- Option 3: 4 m

- Option 4: 5 m

None of the options matches 4.5 m exactly. However, among the options given, 4.2 m (Option 2) is the closest practical approximation.

Correct Answer:

- Option:2, 4.2 m

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