Question

a box contains 250000 medicine tablets each weighing 20 mg wat is total weight of al tablets in box in grams nd in kilograms

Answer 1

total medicines=250000
weight of one medicine =20 mg
weight of 250000 medicines = (250000*20)mg
= 5000000mg
1 kg =1000000 mg
50000000mg =(5000000/1000000) kg
= 5 kg
1 g =1000 mg
5000000 mg = 5000000/1000
=5000g

Answer 2

Concept

As opposed to weight, which is defined as the force an item exerts, mass is defined as the quantity of substance in an object.

Given

Given that a box contains 250000 medicine tablets

Weight per tablet given is mg

Find

We need to find the total weight in grams and kilograms

Solution

A box contains = 250000Tablets

Weight per tablet = 20mg

Now we know that 1 g = 1000mg

Then 20mg = ?g

Therefore let the weight in gram be x

So we can say that

1g = 1000 mg

x g = 20mg

∴ 20 / 1000 = 0.02g

Hence the weight per tablet in g is 0.02g

Now We need to calculate the weight in gram of 250000 medicine tablets

So ,

0.02 * 250000 = 5000 g

Hence the total weight of box in grams is 5000g

Now We need to calculate the total weight of box in kilograms

We know that 1 kg = 1000g

x kg  = 5000g

We need to find the value of x

Therefore,

x = 5000 / 1000 = 5kg

Hence the total weight of box in kilograms is 5kg

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