Question

Express 400g as a percentage of 2kg.

Answer 1

ANSWER

Suppose its x percentage of 2kg

Now we know that

1kg= 1000gm

So 2kg= 2000g

Now

2000*x/100= 400

2000x= 40000

2x= 40

X= 20

So answer = 20 percentage

Answer 2

Final Answer:-

20%

Given:-

mass that have to change = 400g

percentage of 2kg.

To find:-

400g as a percentage of 2kg.

Formula used:-

$percentage \: = \: \frac{a1}{a2} \times 100$

Solution:-

First change both the terms in same unit (gram)

so

A1 = 400 grams

A2 = 2×1000 = 2000 grmas

than,

as we know

$percentage \: = \: \frac{400}{2000} \times 100$

$= \frac{40000}{2000}$

= 20%