SOLUTION: 5. What single discount is equivalent to two successive discounts of 10% and 15%? A) 25% B) 24.5% C) 24% D) 23.5% E) 22% If a merchant makes a profit of 20% based on th

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: 5. What single discount is equivalent to two successive discounts of 10% and 15%? A) 25% B) 24.5% C) 24% D) 23.5% E) 22% If a merchant makes a profit of 20% based on th      Log On


   



Question 769804: 5. What single discount is equivalent to two successive discounts of 10% and 15%?
A) 25%
B) 24.5%
C) 24%
D) 23.5%
E) 22%

If a merchant makes a profit of 20% based on the selling of an article, what percent does the merchant make on the cost?
A) 20
B) 25
C) 40
D) 80
E) None of the above

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

1.
10% and 15%?
x+=+100+%281-%28.90%29%28.85%29%29+=+100+%281-+0.765%29+=+100%280.235%29+=+23.5%
so, answer is D) 23.5%

2.
Let x be the cost and y be the selling price
So if y=100, x=80
then %2820%2F80%29%2A100=25%
answer is B) 25