Question

Express 4 kg and 20 g in kg.

Answer 1

Answer: 4.02 kg

Step-by-step explanation:

We are told to express 4 kg and 20 g in kg.

To solve such similar types of problems you should know that 1 kg = 1000 g.

Now lets get into the problem.

Here you get two choices, Either convert 20 g into kg or convert 4 kg into g.

I would Like to convert 4 kg into g since it would be easy and we don't have to play with decimals at this moment.

So we know that:

1 kg = 1000 g

4 kg = x

Lets cross multiply, and we get

4*1000 = x

4000 = x

Therefore 4 kg in g would be 4000 g.

Now We got 4000 g and 20 g, Both have same units, add it up.

4000 + 20 = 4020 g

Now we have to convert this 4020 in kg.

To convert g into kg we simply divide the given number by 1000

So 4 kg and 20 g in kg would be

4020/1000 = 4.02 kg

Answer 2

Answer:

4.02kg

Step-by-step explanation:

Given that

4kg and 2g

To convert into kg

Solution

As we know that

1kg is equal to 1000g hence

$20g = \frac{20}{1000} = 0.02kg$

now total is

$4kg \: 20g = 4 + 0.02 \\ = 4.02kg$