2kg = 2000g
1kg = 1000g
400g
now add these numbers and divide by the counting of numbers
2000+1000+400/3 = 3133.3333 g is the answer of this question

To calculate the average of 2kg, 1kg, and 400g, we need to convert all the units to the same measurement. In this case, we will convert everything to grams since it is the base unit of weight.


To convert 2kg to grams, we need to know that 1kg is equal to 1000g. Therefore, to convert 2kg to grams, we multiply 2 by 1000.

2kg * 1000g/kg = 2000g

So, 2kg is equal to 2000 grams.


Similarly, to convert 1kg to grams, we multiply 1 by 1000.

1kg * 1000g/kg = 1000g

So, 1kg is equal to 1000 grams.


Since 400g is already in grams, we do not need to convert it.

So, 400g is equal to 400 grams.


Now that we have converted all the units to grams, we can find the average by adding up the three values and dividing the sum by the total number of values.

Average = (2000g + 1000g + 400g) / 3

Average = 3400g / 3

Average ≈ 1133.33g

Therefore, the average of 2kg, 1kg, and 400g is approximately 1133.33 grams.