Percent

Respect   Responsibility   Readiness

 

1. Zoomer Bix plans to buy a microcomputer that costs $690, excluding sales tax. If the sales tax rate is 5 1/2%, how much tax will Zoomer have to pay?

Solution

Multiply 690 by 0.055 = 37.95

So the tax is $37.95

 

2. Wheel World sold 875 cars last year. If sales this year are 120% of sales last year, how many cars will Wheel World sell this year?

Solution

Multiply 875 by 1.20 = 1050

So Wheel World will sell 1050 cars this year.

 

3.   Klutz Schlump borrowed $500. He agreed to pay back the entire loan, plus interest, at the end of the year. If the interest rate is 18% per year, what is the total amount Klutz agreed to pay back?

Solution

Multiply 500 by 1.18 = 590

So Klutz will pay back 500 in principal and 90 in interest.

 

4.   The “suggested retail’ price of a certain camera is $340, but a discount store sells the camera at a 30% discount. What is the price of the camera at the discount store?

Solution

If there is a 30% discount then 70% of the price is kept.

Multiply 340 by .70 = 238

So the camera at the discounted price is $238

 

5.   Mr. J. Doe has a taxable income of $9000. If the income tax rate is 16% on the first $4000 of income, 19% on the next $4000, and 23% on the next $1000, how much is Mr. Doe’s tax?

Solution

Multiply 4000 by .16 = 640

Multiply 4000 by .19 = 760

Multiply 1000 by .23 = 230

 

640 + 760 + 230 = 1630

So Mr. J Doe  will pay $1630 tax on $9000 in income.

 

 

6. After taking his girl friend out to dinner, Osgood decides to leave a tip of 15% of the bill. If the bill is $38, how much should the tip be?

Solution

Multiply 38 by .15 = 5.70

So Osgood will leave a tip of $5.70

 

 

7. Profits of Calculess Corporation this year were 140% of profits last year. If profits last year were $5200, what were profits this year?

Solution

Multiply 5200 by 1.40 = 7280

So Calculess Corp will have profits of $7280 this year.

 

8. Klutz got 10 out of 16 problems on an algebra test correct. What percent were correct?

Solution

10 divided by 16 = .625

So Klutz had 62.5% of the problems correct.

 

9. A team won 12 games, lost 15 games, and tied 3 games. What percent of its games did the team win?

Solution

30 games were played.   (12 + 15 + 3)

12 divided by 30 = .4

So the team won 40% of its games.

 

 

10. In a magazine drive a school keeps 40% of all sales dollars. How many dollars worth of magazines must be sold for the school to earn $5000?

Solution

5000 = 40% of some number

.40x = 5000

x = 12500

So $12500 worth of magazines must be sold for the school to earn $5000.

 

 

11. A real estate broker earns 2 ˝% of her sales as a commission. How many dollars in sales does she need in order to earn a commission of $1000?

Solution

1000 = 2.5% of some number

.025x = 1000

x = 40,000

So the real estate broker must sell $40,000 to earn $1000 when the sales commission is 2.5%

 

 

12. A steel cable expands 0.2% of its length when its temperature is increased 100°C. How much longer will a 750 meter cable become with this increase in temperature?

Solution

Multiply 750 by 1.2 = 900

So the 750 meter cable will become 900 meters

 

 

13. Elmo Buckets made 54 out of 80 free throws. What percent did he miss?

Solution

If Elmo made 54 of 80 then he missed 26..

Divide 26 by 80 = .325  = 32.5%

So Elmo missed 32.5% of his free throws.