A wristwatch was sold at 10% profit. If the cost was 15% less and the selling price was Tk. 20 less, then the trader would have made a profit of 20%. What was the cost of the wristwatch?
A wristwatch was sold at 10% profit. If the cost was 15% less and the selling price was Tk. 20 less, then the trader would have made a profit of 20%. What was the cost of the wristwatch? Correct Answer Tk. 250
Let cp is 100, sp is 110, At 15% less cp is = 85, at 20% profit sp = 85*120% = 102, Difference in sp = 110 - 102 = 8, Now, 8 = 20, So,100 = 20*100/8 = 250 tk Ans. 250 tk