What percent is 4 gm of 1 kg?  Choose the correct choice from the following answers: A) 1.5 % B) 0.4 % C) 2.5 % D) 3.5 % E) 4 %
1 kg = 1000 gm   4/1000 × 100 = 400/1000   =2/5= 
<gadget id="calculator">2/5</gadget>
<output>2/5 = around 0.4</output>
0.4 %   0.4 %)
<result>B</result>
What percent is 4 gm of 1 kg?