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?
Tk 12600
Tk 25800
Tk 1200
Tk 12900
None of these
Description (বিবরণ) :
প্রশ্ন: 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?
ব্যাখ্যা:
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
