In a group of people solicited by a charirty, 30% contributed TK 40 each, 45% contributed TK 20 each and the rest contributed TK 12 each . What percentage of the total amount came from people who gave TK 40 each?

Answer: 
50%
In a group of people solicited by a charity, 30% contributed TK 40 each, 45% contributed TK 20 each and the rest contributed TK 12 each. What percentage of the total amount came from people who gave TK 40 each?