PERT Math Practice Quiz 3

Question 1

The angle for B is 198 degrees. How many shoppers purchased B?

Accepted Answer

165

Answer

Assuming this question refers to a pie chart where the total number of shoppers is 300 (a common total in such problems when not explicitly stated), we can calculate the number of shoppers for B. A full circle is 360 degrees, so 198 degrees represents (198/360) of the total. Multiplying this fraction by the total number of shoppers (300) gives (198/360) * 300 = 0.55 * 300 = 165 shoppers.

Question 2

There is a 12% sales tax. The pre-tax cost of a mobile phone is $280.  What is the tax payable on this mobile phone?

Accepted Answer

$33.60

Answer

To find the tax payable, you need to calculate 12% of the pre-tax cost of the mobile phone. This is done by multiplying the pre-tax cost ($280) by the tax rate (0.12). So, $280 * 0.12 = $33.60. This is the amount of sales tax added to the price.

Question 3

Given the formula a = s2 + 3b - c , find the value of a when s = 7, b = 13 and c = -24.

Accepted Answer

112

Answer

To find the value of 'a', substitute the given values into the formula: a = s^2 + 3b - c. With s = 7, b = 13, and c = -24, the calculation becomes a = (7)^2 + 3(13) - (-24). This simplifies to a = 49 + 39 + 24, which sums to a = 112.

Question 4

What number should replace x?

Accepted Answer

5

Answer

Without the visual representation, we must assume 'x' is part of a numerical pattern or sequence. If the correct answer is 5, it implies that 'x' completes a logical progression or relationship within the missing image. For example, if it were a simple arithmetic sequence like 1, 2, 3, 4, x, 6, then x would logically be 5.

Question 5

Which of these is true?

Accepted Answer

√(-3) is undefined

Answer

The square root of a negative number, such as √(-3), is not defined within the set of real numbers. In the real number system, no number multiplied by itself can result in a negative value. Therefore, √(-3) is considered undefined in the context of real numbers.

PERT Practice Test

PERT Practice Test

PERT Math Practice Quiz 3