Question

A box made of iron has volume of 20 cubic centimeters. lt has a mass of 156 g. Find the density of the box.​

Answer 1

Answer:

Given:-

A box made iron has volume of 20 cm³ or cubic centimeters. It has a mass of 156g. Find the density of the box.

To Find:-

The density of Box.

Note:-

●》Density = $\frac{Mass}{Volume}$

●》If mass is in gram and volume is in centimeters, it is C.G.S unit; If mass is in kilogram and metre, it is M.K.S unit. If the upper stamentent is not same, the answer would be wrong.

Solution:-

$\huge\red{Mass = 156g, Volume = 20cm³}$

$\huge\red{\ \ \ \ Density = ?}$

☆ According to note first point~

▪︎$Density = \frac{Mass}{Volume}$

▪︎$Density = \frac{156g}{20cm³}$

☆ After reducing~

▪︎$Density = \frac{39g}{5cm³}$

☆ In decimal point~

▪︎$Density = 7.8 g/cm³$

☆ Note second point~

▪︎$Density = \frac{39g}{5cm³} \ \ or \ \ 7.8 g/cm³ => ✔$

$\huge\pink{Density = \frac{39g}{5cm³} \ \ or \ \ 7.9 g/cm³}$

Answer:-

Hence, the density = $\frac{39g}{5cm³}$ or 7.8 g/cm³.

:)