Math Problem Solving Quiz

The video tutorial covers a series of math problems, including simplifying square roots, calculating population ratios, finding angles in intersecting lines, determining box packing ratios, approximating numerical expressions, and calculating averages. Each problem is broken down step-by-step, demonstrating algebraic and geometric principles, and providing multiple methods for solving the problems.

What is the result of squaring 2 times the square root of 7?

• 14

• 28

• 49

• 56

If there are three times as many people aged 21 or under as those over 21, what is the ratio of people aged 21 or under to the total population?

• 1:2

• 4:5

• 2:3

• 3:4

In a figure with intersecting lines, if one angle is 3x degrees and another is 2x degrees, what is the value of x if these angles are supplementary?

• 30

• 36

• 45

• 60

What is the value of y if the angle y + 30 degrees is opposite to an angle of 72 degrees?

• 48

• 36

• 42

• 30

If Chris packed 60% of the boxes, what is the ratio of boxes packed by Kelly to those packed by Chris?

• 2:3

• 1:2

• 3:5

• 3:4

Which of the following is the closest approximation of 50.2 times 0.49 divided by 199.8?

• 1/4

• 1/2

• 1/8

• 1/16

What is the average of the numbers 10, 30, and 50?

• 20

• 30

• 40

• 50

If the average of 10, 30, and 50 is 5 more than the average of 20, 40, and x, what is the value of x?

• 25

• 15

• 10

• 20