Test 3

1.

1 point

The distance light travels in one year is approximately 5,870,000,000,000 miles. The distance light travels in 100 years is:

587 × 10^(-10) miles

587 × 10^8 miles

587 × 10^12miles

587 × 10^10 miles

2.

1 point

If 10^2y = 25, then 10^(-y) equals:

1/50

1/625

-1/5

1/5

3.

1 point

The atmosphere normally exerts a pressure of about 15 pounds per square inch on surfaces at sea level (ouch!). About how much pressure does the atmosphere exert on a surface 30 square inches in area?

45 pounds

15 pounds

450 pounds

2 pounds

4.

1 point

Gorillas and potatoes have two more chromosomes than humans do. If 50% of a number is 20, what is 75% of the number?

15

30

45

8

5.

1 point

What is the remainder when 3^3 is divided by 5?

3

2

1

0

6.

1 point

A survey of 1000 registered voters revealed that 450 people would vote for One Direction in an upcoming election (despite their being an entire GROUP of people, and not at all politically inclined). If 220,000 people vote in the election, how many votes would the survey takers predict One Direction should receive?

44,500

95,000

99,000

48,900

7.

1 point

If ‘+’ means ‘×’, ‘-‘ means ‘+’, ‘×’ means ‘÷’ and ‘÷’ means ‘-‘, then find the value of:

6 – 9 + 8 × 3 ÷ 20

6

-2

10

12

8.

1 point

An Oompa-Loompa scored the following numbers of points in his last 7 basketball games: 8, 21, 7, 15, 9, 15, and 2. What is the median number of points scored by the Oompa-Loompa in these 7 games?

9

15

11

19

9.

1 point

Tinkerbell enlarged her selfie proportionally. Her original picture is 4 mm wide and 6 mm long. If the new, larger picture is 10 mm wide, what is its length?

15

8

12

20

10.

1 point

When asked how old she was, Hermione Granger replied: “In two years I will be twice as old as I was five years ago”. How old is she?

5

15

10

12

11.

1 point

One fine morning, the temperature was 5° below zero. By noon, the temperature rose 20° Fahrenheit (F) and then dropped 8°F by evening. What was the evening temperature?

15° below zero

17° below zero

7° above zero

12° above zero

12.

1 point

Citizens of Honduras use lempira for their money. In July 2002, the conversion rate for U.S. money to Honduran money was about 6 cents to 1 lempira. What dollar amount was equivalent to 300 lempiras?

$ . 0 18

$. 50

$. 0 50

$. 18 00

13.

1 point

A utility company estimates (rather naively) that a power line repair job will take a total of 24 person-hours. If 3 workers are assigned to the job, how long will it take them to complete the job according to this estimate?

72 hours

8 hours

12 hours

27 hours

14.

1 point

The value of x + x(x^x) when x = 2 is:

18

36

10

16

15.

1 point

A clock reads 4:30. If the minute hand points East, in what direction will the hour hand point?

North-East

South-East

North

North-West

16.

1 point

Ken Watanabe (no relation to Ken Watanabe) drove 276 miles from his house to Los Angeles at an average speed of 62 miles per hour. His trip home took 6.5 hours. How did his speed on the way home compare to his speed on the way to Los Angeles?

It was about 2 miles per hour faster

It was about 2 miles per hour slower

It was about 20 miles per hour faster

It was about 20 miles per hour slower

17.

1 point

The average of four numbers is five less than the average of the three numbers that remain after one has been eliminated. If the eliminated number is 2, what is the average of the four numbers?

17

22

66

68

18.

1 point

A computer can perform c calculations in s seconds. How many minutes will it take the computer to perform k calculations?

ks/60c

ks/c

60ks/c

60c/ks

19.

1 point

Which shows 833,000 written in scientific notation?

8.33^105

833 x 10^5

8.33 x 10^5

83.3 x 10^5

20.

1 point

Which of the following could not be the exact number of right angles in a quadrilateral?

1

2

3

4