Question

A box contains 100000 tablets each weighing 20mg what is the weight of all the tablets in the box in both grams and kilograms

Answer 1

100000 * 20 = 2000000 {weight of all tablets in mg}
1 g = 1000 mg
2000000/1000 = 2000 g {weight of all tablets in g}
1 kg = 1000 g
2000/1000 = 2 kg {weight of all tablets in kg}

Answer 2

Concept

Weight is the force a thing exerts, whereas mass is the amount of substance it contains.

Given

The amount of tablets are 100000

The weight of each tablet given is 20mg

Find

We need to find the weight of all the tablets in the both grams and kilograms

Solution

As we know that there are total 100000 Tablets

It is given that 1 tablet = 20mg

So the weight of 1,00,000 tablets

=  20 × 1,00,000 = 20,00,000 mg

So the weight of 1,00,000 tablets = 20,00, 000 mg

We need to find the weight in grams and kilogram

So, we need to convert the mg into grams and kilogram

Now , We know that

1 g = 1000 mg

x = 20,00,000 mg

x =  20, 00, 000 / 1000

x  = 2000 g

Hence the weight in grams  is 2000 g

Convert the weight of the tablet into Kilograms

We know that

1 kg = 1000 g

Then let the weight in the kg will be y

If 1 kg = 1000g

∴ y kg = 2000g

∴ y kg = 2000 / 1000

So , y = 2kgs

Hence the weight of the tablet in kilogram is 2kilograms

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