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?
Number of tablets in a box=2,00,000
Weight of each tablet=20 mg
Weight of 2,00,000 tablets in the box=2,00,000×20=40,00,00 mg
We know that 1 gm=1000 mg
⇒40,00,00 mg=40,00,00 mg1000 mg×1 gm=4,000 gms
1 kg=1000 gms
4000 gms=40001000×1 kg=4 kgs
∴ total weight of all the tablets in the box is=4000 gms in grams and in 4 kgs in kilograms.