If the average cost of producing an item decreases from Tk. 50 to Tk. 75, what is the percent of the decrease?

A 10

B 12.5

C 14

D 15

Correct Answer: Option C

price reduces = (12.50-10.75)=1.75 in 12.50 tk there decrease 1.75 tk " 1 " " " 1.75/12.50 tk " 100 " " " 1.75 X 100/12.50 = 14 tk