Seller selling an apple for Rs.20, a Seller loses 1/6th of what it costs him. The CP of the apple is?
Select the correct option:
A) 10 B) 12 C) 21 D) 18 E) 20
SP=20Loss=21P21Loss=21P−SP=21P−20⇒21P21=21P−20⇒20 21P21=20⇒21P21=1⇒21P=21   21
<result>C</result>
Seller selling an apple for Rs.20, a Seller loses 1/6th of what it costs him. The CP of the apple is?