A man buys an article and sells it at a profit of 20%. If he had bought it at 20% less and sold it for Rs.80 less, he could have gained 25%. What is the cost price?	Choose the correct choice from the following answers:
A) 372
B) 375
C) 278
D) 400
E) 288
CP1 = 100 SP1 = 120   CP2 = 80 SP2 = 80 * (125/100)= 
<gadget id="calculator">80 * (125/100)</gadget>
<output>100</output>
100   20 ----- 100   80 ----- ?=&gt; 375   Answer:400
<result>D</result>
A man buys an article and sells it at a profit of 20%. If he had bought it at 20% less and sold it for Rs.80 less, he could have gained 25%. What is the cost price?