Subject: mathqa
Question: the price of commodity x increases by 40 paise every year , while the price of commodity y increases by 15 paise every year . if in 2001 , the price of commodity x was rs . 4.20 and that of y was rs . 6.30 , in which year commodity x will cost 40 paise more than the commodity y ?
Option: 
A: 2001
B: 2010
C: 2011
D: 2012
Answer: C