Question

400g=______kg how many kg

Answer 1

We can use the rule of three where we know that 1000g is equivalent to 1kg, then how many Kg is equivalent to 400 g. So:

1000 g ---------- 1 Kg

400 g ---------- X

Where X is the number of Kg equivalent to 400 g.

Therefore, solving for X, we get:

`X=\frac{400\text{ g}\cdot1\text{ Kg}}{1000\text{ g}}=0.4\text{ Kg}`

Answer: 400 g = 0.4 Kg