A book sells for Tk. This price gives the seller a profit of 30% on his cost. What will be the new selling price if he cuts profit to 10% of its cost?
সমাধান
সঠিক উত্তর: Option C
cost = x tk
profit = 30% of x = .3x
Selling price = cost + profit
65 = x + .3x
1.3x = 65
x = 50
If profit is 10%, selling price is 1.1x
So, 1.1x = 50X1.1= 55
