By selling an article at Rs.400, a profit of 25% is made. Find its cost price?
Choose the most appropriate option:  A) 228  B) 320  C) 287  D) 480  E) 811
SP = 400   CP = (SP)*[100/(100+P)]   = 400 * [100/(100+25)]   = 400 * [100/125] = Rs.320   Answer: 320
<result>B</result>
By selling an article at Rs.400, a profit of 25% is made. Find its cost price?