Given that one Tunnel Boring machine could build 1,000 m of tunnel a month and the Tunnel is 50 km long, how fast could the Tunnel have been built using two Tunnel Boring machines if there had been no delays?
A. just over 2 years
B. just under 5 years
C. about 1 year
D. just over 4 years
What is the missing number in the sequence? 4, 6, 10, 18, ___, 66.
A.45
B. 34
C. 54
D. 22

What was the average amount of precipitation received in all areas on the fifth of the month?
A. 0.95 inches
B. 2.41 inches
C. 1.01 inches
D. 0.80 inches
Express this number as a percentage: 9/40.
A. 0.0225%
B. 22.5%
C. 0.225%
D. 2.25%
a is inversely proportional to (b - 4). If a = 8 and b = 22, express a in terms of b.

A. Option A
B. Option B
C. Option C
D. Option D
A researcher is developing a new mold sealant designed to cover large areas. She plans to test the substance on a room with a total of 66 square meters of wall space.
If the product is designed to cover nine square meters of surface for every liter of compound, she will need to prepare a minimum of approximately how much sealant to cover the entire room?
A. 594 milliliters
B. 73 liters
C. 73 deciliters
D. 73 kiloliters
Three numbers x, y, and 27 have a mean of 30. Five numbers x, y, 27, a, and b have a mean of 45. What is the mean of a and b?
A. 69
B. 70
C. 67.5
D. 25

The figure shows a graph of the speed of a test vehicle, plotted every second for 6 seconds during an experiment.
Which of the following statements best describes the motion of the vehicle during this time?
A. The vehicle starts by moving slowly and continues to pick up speed during the entire time.
B. The vehicle slows down at first, then picks up speed during the last 2 seconds of the time measured.
C. The vehicle is moving rapidly at the start of measurement and slows down to a stop at the end.
D. The vehicle moves at the same speed the entire time.