By selling an article at Rs.150, a profit of 25% is made. Find its cost price?  Choose one:
A) s . 486	B) s . 455	C) s . 487	D) s . 120	E) s . 489

Rationale: "sp = 150 cp = ( sp ) * [ 100 / ( 100 + p ) ] = 150 * [ 100 / ( 100 + 25 ) ] = 150 * [ 100 / 125 ] = rs . 120 answer : d"
Answer: D