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?
সমাধান
সঠিক উত্তর: Option E
30% contributed=40×30%=12 Tk
45% contributed=20×45%=9 tk
Rest={100-(30+45)}%=25% contributed= 3 tk
total=12+9+3=24
The percentage of the total amount came from people who gave tk. 40 each=(12×100)/24=50%
