What percent is 25 gm of 1 kg?  Choose the correct choice from the following answers:
A) 0.5 %  B) 1%  C) 1.5%  D) 2.5%  E) 3%
1 kg = 1000 gm   25/1000 × 100 = 2500/1000   =5/2= 
<gadget id="calculator">5/2</gadget>
<output>5/2 = around 2.5</output>
2.5 %   2.5%)
<result>D</result>
What percent is 25 gm of 1 kg?