Math Drill

Which of the following is the factorization of the binomial x² - 4²?

• (x + 4)(x + 2)

• (x – 4)²

• x(x + 2x + 2)

• (x – 4)(x + 4)

Which of the following is ALWAYS true?

• Vertical pairs of angles are supplementary.

• Vertical pairs of angles are complementary.

• Linear pairs of angles are congruent.

• Linear pairs of angles are supplementary

The area of a rectangle is (x² + 2x - 8). If its length is x + 4, what is its width?

• x + 2

• x - 2

• x + 1

• x + 6

What is the value of 12⅙ - 3 ⅜ - 5 ⅔ + 20 ¾?

• 12 1/8

• 22

• 23 7/8

• 21

Which of the following has the largest value?

• 8⁵

• 3⁹

• 6⁵

• 9⁴

A water tank contains 18 liters when it is 20% full. How many liters does it contain when 50% full?

• 60

• 30

• 58

• 45

The edges of a rectangular solid have these measures: 1.5 feet by 1½ feet by 3 inches. What is its volume in cubic inches?

• 324

• 225

• 972

• 27

In a certain school, the ratio of boys to girls is 5 is to 7. If there are 180 boys and girls in the school, how many boys are there?

• 105

• 90

• 45

• 75

Ruben’s grades in 6 subjects are 88, 90, 97, 90, 91 and 86. What is the grade that he should aim for in the 7th subject if he has to have an average of 91?

• 87

• 95

• 92

• 89

On a certain day, three computer technicians took turns in manning a 24-hour internet shop. The number of hours Cesar, Bert, and Danny were on duty was in the ratio 3:4:5, respectively. The shop owner pays them P50 per hour. How much would Danny receive for that day?

• P 230

• P500

• P160

• P480