a trader sells 40 metres of cloth for rs. 8200 at a profit of rs. 20 per metre of cloth. how much profit will the trder earn on 40 metres of cloth? Choose the most appropriate option
A) rs . 800  B) rs . 1500  C) rs . 1000  D) rs . 1200  E) none of these
<gadget id="calculator">20 * 40</gadget>
<output>800</output>

<result>A</result>
a trader sells 40 metres of cloth for rs. 8200 at a profit of rs. 20 per metre of cloth. how much profit will the trder earn on 40 metres of cloth?
multiply(20, 40)
"explanation : sp of 1 metre cloth = 8200 / 40 = rs . 205 . cp of 1 metre cloth = rs . 205 – 20 = rs . 185 cp on 40 metres = 185 x 40 = rs . 7400 profit earned on 40 metres cloth = rs . 8200 – rs . 7400 = rs . 800 . answer : option a"