DRILL 4

Question 1

In 2009, the price of each Econolux car ­increased by 10 percent from the 2008 price. In 2010, they decreased by 5 percent and now cost between $18,000 and $19,800. Which of the following could be the price of a 2008 Econolux car?

Indicate all such values.

    $17,030

    $17,230

    $18,180

    $18,935

    $18,955

    $20,790

Question 2

Question 3

Which of the following are greater than 1?

Indicate all such values.

    

    

    

    

Question 4

If during a one-day period the Q train ­arrives at the station 30% less frequently than the B train, and the B train arrives 10% less frequently than the F train, then the Q train’s frequency is what percent of the F train’s frequency?

    27

    40

    60

    63

    90

Question 5

67.345×10¹⁵ is equivalent to which of the ­following?

Indicate all such values.

    6.7345 × 1000¹³

    673.45 × 10¹⁶

    6.7345 × 10¹⁶

    67.345 × 100¹⁴

    0.0067345 × 10¹⁸

Question 6

The sum is equivalent to which of the following sums?

    

    

    

    

    

Question 7

An investment club has had an average rate of return of 15% per year for the past 6 years. If Teresa invests $1000 today and neither adds nor subtracts money from the club, how much will Teresa have invested after 5 years assuming that the rate of return does not change?

    1000 + 1.15⁵

    1000(1.15)⁵

    1000 + 0.15

    1000(0.15)⁵

    1000(5)^0.15

Question 8

If , then what is the value of x?

Question 9

Ben’s music album sold the number of copies as Regina’s album. If Regina’s album sold at least 1,500 copies more than Ben’s ­album, how many copies of Ben’s album were sold?

Indicate all such values.

    12,000

    11,244

      9,000

      6,500

      6,436

      4,225

Question 10

Carmen wants to open a special savings account through her work. If Carmen invests $7,000 at 6 percent simple annual interest in January, and no other money is added to or removed from the account, which of the following is true?

Indicate all such statements.

    At the end of April, Carmen will have earned $105 in interest.

    At the end of the year, Carmen will have earned $420 in interest.

    At the end of six months, Carmen will have earned $35 in interest.

    At the end of three months, Carmen will have $7,105 in the account.

Question 11

If each of three grocery stores receives of a farmer’s potato crop, a farmer’s market receives of the remaining, and a local fast food restaurant receives the remaining 200 pounds, how many pounds of potatoes were in the farmer’s crop?

      300

      400

      900

    1,200

    1,400

Question 12

The price of Mabel’s car, not including interest, is 12 percent more than the price of Rose’s car. Combined, Mabel and Rose’s cars cost $53,000. If Mabel’s car loan interest rate was 5.20 percent, what was the total cost of Mabel’s car, including interest?

Question 13

Evangeline must spend of her weekly salary on rent and of her remaining salary on food. Which of the following could be percentages of her weekly salary that Evangeline devotes to entertainment, while still enabling her to place of her salary into a savings account?

Indicate all such percentages.

      0.5%

      5.0%

      7.5%

    10.0%

    15.0%

    25.0%

    50.0%