math question?

Question

1: Mary spelled 17 words correctly out of 20. What percent were correct? What is her mark on this test?
80%
83%
85%
87%


2: A school decided to raise 500 dollars for an athletic fund. When they had collected 325 dollars, what percent of the goal was reached?
57%
65%
60%
74%


3: A suit marked $24.00 was reduced $6.00. Find the percent reduction.
25%
20%
30%
35%


4: A man owed $750. In one year he paid $45 interest. What percent was the interest of the debt?
4%
6%
8%
11%


5: A savings account contained $240. The bank paid $4.80 interest at the end of the year. What percent of interest did the bank pay?
5%
12%
1/2%
2%


6: A pint is what percent of a gallon?
50%
12.5%
15%
24%


7: A square foot is what percent of a square yard?
12 1/2%
13 1/4 %
11 1/9%
10%


8: 18 is what percent of 48?
33 1/3%
30%
45%
37 1/2%

Answer 1

1) total # of correct answers / total # of questions
= 17/20 = 85%

2) money collected / total needed
= 325/500 = 65%

3) reduction / old price
= 6/24 = 25%

Now you try some.

Answer 2

To find what percentage A is of B, divide A by B and multiply by 100.

1. 17/20 * 100 = 85%
2. 325/500 * 100 = 65%
3. 6/24 * 100 = 25%
4. 45/750 * 100 = 6%
5. 4.8/240 * 100 = 2%
6. (There are 8 pints in a gallon, so we have 1 pint out of 8 pints): 1/8 * 100 = 12.5%.
7. 1 square yd = (3ft)^2 = 9 ft^2. So we have 1/9 * 100 = 11 1/9%.
8. 18/48 * 100 = 37 1/2%.