Math Teas

What is the value of this expression? 2× (5-8×10) +52× (5-8×10) +5 A. -50 B. -145 C. -55 D. -15

B. -145

What is the decimal equivalent of 0.33% A. 0.033 B. 0.0033 C. 33.0 D. 0.33

B. 0.0033

What is the percent equivalent of 0.0067? A. 67% B. 0.67% C. 0.067% D. 6.7%

B. 0.67%

Express 48 square centimeters in square meters. A. 4800 square meters B. 0.48 square meters C. 0.048 square meters D. 0.0048 square meters

D. 0.0048 square meters

Arrange the numbers 0.09, 0.099, 0.9, 0.009, and 0.091 in order, from least to greatest. A. 0.09, 0.099, 0.009, 0.9, 0.091 B. 0.009, 0.09, 0.9, 0.091, 0.099 C. 0.09, 0.9, 0.091, 0.099, 0.009 D. 0.009, 0.09, 0.091, 0.099, 0.9

D. 0.009, 0.09, 0.091, 0.099, 0.9

Evaluate:0.07 x 0.4 A. 0.28 B. 2.8 C. 28 D. 0.028

D. 0.028

Evaluate 0.30 - 0.03 A. 0.3 B. 2.7 C. 0.027 D. 0.27

D. 0.27

Sam, Paul, and Dean share a sum of money in the ratio 14:16:18 respectively. Given that Sam receives $2100, how much does Dean receive? A. $2400 B. $2000 C. $5100 D. $2700

D. $2700

Find the value of (3)(-4)(-3)(5)(-2) A. -1 B. 17 C. 360 D. -360

D. -360

If 42.8 kg is divided into two parts, in a ratio of 7:2, how many kg is the smaller share? A. 21.4 kg B. 9.51 kg C. 0.856 kg D. 12.22 kg

B. 9.51 kg

Evaluate this expression. Which of these answers is correct? 2 5 - x - 3 8 A . 5 - 24 B. 12 - 28 C. 5 - 12 1012

5 C. - 12

Sebastian purchased a brand new car three years ago for $35,000. The following year its value was estimated at $23,850, and the year after that the price dropped to $20,400. Approximately what was the percentage change in the value of Sebastian's vehicle between one year and two years after its purchase? A. -14% B. -42% C. 14% D. 86%

A. -14%

Find the value of 9+(-41)-(-3)+119+(-41)-(-3)+11 A. -18 B. 24 C. 64 D. -24

A. -18

Express 2/7 as a decimal, with the answer correct to 2 decimal places. A. 0.29 B. 3.5 C. 0.3 D. 0.285

A. 0.29

Which of these expresses 33 - 80 as a decimal? A. 0.4125 B. 0.345 C. 4.125 D. 0.0412

A. 0.4125

What is the exact value of 0.4⋅3.50.4⋅3.5 ? A. 1.4 B. 14 C. 0.14 D. 13.5

A. 1.4

A public health lecture was 1 hour 25 min long. The program started at 0940. At what time did it finish? A. 1105 B. 1140 C. 1055 D. 815

A. 1105

A tank is 12 cm high with a square base. Its sides are 10 centimeters wide. What is the volume of the tank in cubic centimeters? A. 1200 B. 600 C. 4800 D. 120

A. 1200

Divide: 7 1 --- / ---- 8 16 A. 14 B. 7 / 128 C. 3 D. 13

A. 14

The town of Greenbody received 10.8 inches of rain in March, 5 inches in April, 3.47 inches in May, and 0.9 inches in June. What was the town's total rainfall over this four-month period? A. 20.17 B. 40.17 C. 4.69 D.14.92

A. 20.17

A map has the scale of 4 cm to 1 km. What is the actual area of a lake on ground which is represented as an area of 60 cm2cm2 on the map? A. 3.75 cm2cm2 B. 0.26 km2km2 C. 15 km2km2 D. 3.75 km2

A. 3.75 cm2cm2

Ali is x years old and her sister Sara is (10x - 24) years old. Given that Sara is twice as old as Ali, what is Sara's age? A. 6 B. 10 C. 24 D. H8

A. 6

A teacher has a rectangular piece of paper which is 52 cm long and 38 cm wide. She cuts the paper into squares, each measuring 5 cm by 5 cm. What is the largest number of whole squares she cuts? A. 70 B. 25 C. 79 D. 79.04

A. 70

In a competition, three teams, A, B and C, scored a total of 150 points. If A scored 40% of this total and B scored four times as many points as C, what were the number of points scored by B? A. 72 B. 18 C. 60 D. 90

A. 72

A review of data from 18 different studies found that there was a reduction in the risk of type 2 diabetes as people increased their consumption of coffee. What valid conclusion can be made about the relationship between the consumption of coffee and the risk of type 2 diabetes, based on the results of this review? A. Studies have evidenced a negative covariance between coffee consumption and risk of type 2 diabetes. B. Studies have suggested that coffee consumption and risk of type 2 diabetes are uncorrelated. C. Studies have evidenced a random covariance between coffee consumption and risk of type 2 diabetes. D. Studies have evidenced a positive covariance between coffee consumption and risk of type 2 diabetes.

A. Studies have evidenced a negative covariance between coffee consumption and risk of type 2 diabetes.

Yesterday, Fatima trained for 6.25 hours, riding her bicycle under various conditions. During her workout, she managed to ride 114.75 miles in total. What was her average speed during this training session? A. 19.61 miles per hour B. 18.36 miles per hour C. 18.22 miles per hour D. 21.00 miles per hour

B. 18.36 miles per hour

John, Lucy and Emma share 60 pencils in the ratio 4:5:6. How many pencils does Lucy receive? A. 3 B. 20 C. 24 D. 16

B. 20

Given that a = 4, b = - 6 and c = 8, what is the value of (a+2c)(b+2c)? A. -104 B. 200 C. 20 D. -200

B. 200

What is the fraction equivalent of 0.032? A. 8 / 125 B. 4/ 125 C. 4 / 250 D. 32 / 100

B. 4/ 125

Hamza purchased six 2-liter bottles of soft drink to serve at a pizza party with friends. If the group drank 7,264 cubic centimeters of the soda during the party, about how many liters of soft drinks remained afterward? A. 3 liters B. 5 liters C. 2 liters D. 7 liters

B. 5 liters

The price of a pencil box increased from $25 to $26.50. What is the percentage increase in the price? A. 35% B. 6% C. 0.6% D. 60%

B. 6%

Given that 5 cm on a map represents 4 km on the ground, calculate the distance in km between two points, which are 8 cm apart on the map. A. 64 km B. 6.4 km C. 2.5 km D. 10 km

B. 6.4 km

Three numbers a, b and 27 have a mean of 30. What is the value of a + b? A. 31 B. 63 C. 28 D. 67

B. 63

What is the number a, if the result of adding a to 80 is the same as subtracting 2a from 272. A. 192 B. 64 C. -64 D. 62

B. 64

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. 67.5 C. 25 D. 70

B. 67.5

Express 5.6 meters as a percentage of 8 meters. A. 25% B. 70% C. 4.48% D. 75%

B. 70%

Two students were practicing the use of a scale. They each weighed an identical object 5 times. Student A got weights of 103, 104, 105,106, and 107 pounds for the object, and student B got 101, 103, 105, 107, and 109 pounds for the same object. Which of the following statements best describes the average and variation in their results? A. Student B got a higher average weight than student A and the same range. B. The two students got the same average weight, but student B had a higher range of measurements and more variability. C. The two students got the same average weight and each had 5 measurements so the variability was the same. D. Student B got a higher average weight than student A and higher range.

B. The two students got the same average weight, but student B had a higher range of measurements and more variability.

Samantha is employed part-time working for three different businesses. At the first company she is paid $20.00 per hour and works 15 hours each week. Her second job pays $18.25 an hour and requires her to work two hours each day, Monday through Friday. On her last job, Samantha is paid $15.00 per hour. If she works a total of 37 hours every week, how much money does Samantha make on a weekly basis? A.$497.50 B. $266.25 C. $662.50 D. $632.50

C. $662.50

In a sale, all prices are reduced by 40%. Calculate the original price of an article whose sale price is $42. A. $72 B. $58.80 C. $70 D. $105

C. $70

A day trader noted that the value of a particular foreign currency pair fell from 1.32075 when the markets opened on Monday to 1.29620 when the markets closed on Friday. By how much did the value of the currency pair decrease during the week, rounded to the nearest thousandth? A. 0.024 B. 0.0246 C. 0.025 D. 0.02455

C. 0.025

Patti's base salary last year was $65,000, not including her year-end bonus. When she checked her human resources profile, she saw that her total compensation added up to $77,500. This total included her bonus, as well as health benefits equivalent to 15% of her base salary. Rounded to the nearest tenth, what percentage of Patti's base salary plus benefits was her bonus? A. 3.6% B. 4.2% C. 3.7% D. 23.6%

C. 3.7%

What percent of 15 is 6? A. 20% B. 90% C. 40% D. 32%

C. 40%

What is the value of a in this equation? 6a 2a 1 -- -- = --- 5 2 2 A. 2 / 5 B. 5 / 5 C. 5 / 2 D. 20 / 4

C. 5 / 2

Given that 6x = 7y, find the ratio x : y. A. 42:6 B. 6:7 C. 7:6 D. 7:42

C. 7:6

The area of one face of a cube is 49 square centimeters. What is the total length of all its edges? A. 48 cm B. 112 cm C. 84 cm D. 98 cm

C. 84 cm

What is the value of x in this equation? (x+3) (2x−3) ----- = -------- 4 5 A. -9 B. 12 C. 9 D. 15

C. 9

What is the value of the expression: 3+2(3+4)2-63+2(3+4)2-6 A.38 B. 239 C. 95 D. 19

C. 95

Sam is now 5 times as old as his son Paul. Four years ago, the product of their ages was 52. Find their present ages. A.Sam: 5 years; Paul: 30 years' B. Sam: 60 years; Paul: 30 years C. Sam: 30 years; Paul: 6 years D. Sam: 15 years; Paul: 2 years

C. Sam: 30 years; Paul: 6 years

Solve the inequality 17 - 2a < 10. A. a > 5 B. a < 2.3 C. a > 3.5 D. a < 3.5

C. a > 3.5

Mary is x years old. She is 6 years older than her twin brothers Sam and Paul. What is the mean age of the three children? A. x − 3 B. x + 4 C. x − 4 D. x − 2

C. x − 4

The cost of 1 pound of fruit is $3.40.How many pounds of food can be bought for $12.00? A. 6.3 pounds B. 35 pounds C. 0.35 pounds D. 3.53 pounds

D. 3.53 pounds

When a number is subtracted from 125 and the result is divided by 12, the answer obtained is twice the original number. What is the number? A. 4 B. 25 C. 10 D. 5

D. 5

In a library, 30% of the books are fiction and the rest are non-fiction. Given that there are 2,000 more non-fiction books than fiction books, what is the total number of books in the library? A. 6,000 B. 3,000 C. 4,000 D. 5,000

D. 5,000

Solve the equation and choose the best answer: 9 / b = b / 4 A. 36 B. 6.2 C. 7 D. 6

D. 6

A side of a square is 2.5 cm long. What is the area of square? A. 5 B. 39 C. 10 D. 6.25

D. 6.25

Brad plans to leave instructions with his broker to sell all of his shares in a particular company if the value of its stock rises more than 10% above the current price, but to purchase additional shares if the stock's value falls more than 10% below its present value. The stock is currently selling for $73.50 a share. Which expression represents the interval, n, between which the broker should neither buy nor sell any shares of the company's stock for Brad? A. 73.60<n<73.6073.60<n<73.60 B. 69.83<n<77.1869.83<n<77.18 C. 63.50<n<83.5063.50<n<83.50 D. 66.15<n<80.85

D. 66.15<n<80.85

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 kiloliters C. 73 liters D. 73 deciliters

D. 73 deciliters