A dishonest dealer professes to sell goods at the cost price but uses a false weight and gains 25%. Find his false weight age?	Choose the correct choice.
A) 800  B) 802  C) 821  D) 897  E) 828
25 = E/(1000 - E) * 100   1000 - E = 4E   1000 = 5E =&gt; E = 200   1000 - 200= 
<gadget id="calculator">1000 - 200</gadget>
<output>800</output>
800   800nswer: 800
<result>A</result>
A dishonest dealer professes to sell goods at the cost price but uses a false weight and gains 25%. Find his false weight age?