Find the mass (in kg) of kerosene filled up to the brim in a tank of dimensions 5 m × 2 m × 1 m. (Density of kerosene is 800 kg/m³)

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This question was previously asked in

RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 2).

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Answer 1

Concept:

Mass:

It is one of the fundamental quantities in Physics and the most basic property of matter.
It can be defined as the measure of the amount of matter in a body.
The SI unit of mass is Kilogram (kg).

Density:

Mathematically, \(\rho=\frac{Mass}{Volume}\)

Calculation:

Given:

dimension of tank = 5 m × 2 m × 1 m, Density (ρ) = 800 kg/m³

∵ \(\rho=\frac{Mass}{Volume}\)

⇒ \(800=\frac{M}{5~×~2~×~1}\)

⇒ Mass = 800 × 10 = 8000 kg

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