tsi math practice questions v2

In the figure above, what is the average (arithmetic mean) of w,x,y and z?

• 90

• 100

• 120

• Cannot be determined by the given information

The bar graph above shows the number of t-shirts of different colors sold by a store in one week. The following week, the store had a sale and sales of each color shirt sold had increased by about 50% from the previous week. Of the following, which is closest to the number of green t-shirts sold the week of the sale?

• 15

• 20

• 45

• 60

At a computer store, a tablet computer was on sale for 10% off. If the original price of the computer was P, what is the sale price in terms of P?

• P - 10

• P - 0.10

• .90P

• 0.10P

• 2(12y - 12)

• 2(12y - 6)

• 4(6y - 3)

• 12(2y - 1)

• 4

• (x - 1)

• (x - 4)

• (x + 4)

The bowl contains 6 green grapes, 10 red grapes, and 8 black grapes. Which of the following is the correct calculation for the probability of choosing a red grape? Without putting the red grape back into the bowl, pull out a green grape?

• (u - v)

• (2u - v)

• (u - 2v)

• (u + v)

• None

• One

• Two

• Infinitely many

If an item regularly costs d dollars, and is discounted 12%. Which of the following represents the discounted price in dollars?

• 0.12d

• 0.88d

• 1.12d

• d-0.12