A sells an article to B at gain of 25% B sells it to C at a gain of 20% and C sells it to D at a gain 10%. If D pays Rs. 330 for it, how much did it cost to A?

A sells an article to B at gain of 25% B sells it to C at a gain of 20

1.	A sells an article to B at gain of 25% B sells it to C at a gain of 20% and C sells it to D at a gain 10%. If D pays Rs. 330 for it, how much did it cost to A?
A.	Rs. 200
B.	Rs. 250
C.	Rs. 275
D.	Rs. 290
Answer» B. Rs. 250