Question

A box containing $200000$ medicine tablets each weighing $20$ mg. What is the total weight of all the tablets in the box in grams and in kilograms?

Answer 1

Number of tablets in a box$=2,00,000$

Weight of each tablet$=20mg$

Weight of $2,00,000$ tablets in the box$=2,00,000\times 20=40,00,00mg$

We know that $1gm=1000mg$

$\Rightarrow 40,00,00mg=\frac{40,00,00mg}{1000mg}\times 1gm=4,000gms$

$1kg=1000gms$

$4000gms=\frac{4000}{1000}\times 1kg=4kgs$

$\therefore$ total weight of all the tablets in the box is$=4000gms$ in grams and in $4kgs$ in kilograms.