In a group of people solicited by a charity, 30% contributed Tk 40, 45% contributed Tk 20 and the rest contributed Tk 2. If the charity received a total of Tk 300 from the people who contributed Tk 2, how much was contributed by the entire group?

Correct Answer: Tk 12900
300/2 = 150, তাহলে 150 জন 2 tk দিয়েছিল। যেহেতু এই group টি ছিল 100% - 30% - 45% = 25% of the total group, 150/. 25 = 600 জন অই group এ ছিল so, 40 টাকা group এর amount = .30*600*40 = 7200 tk 20 " " " = .45*600*20 = 5400 tk total = 7200 + 5400 + 300 = 129000 so, none of these