PAPA Mathematics Skills & Reasoning 1 — Questions and Answers

Question 1: What is the value of 3(4 + 2) - 5?

15
13 (Correct answer)
11
9

Correct answer: 13

To solve 3(4 + 2) - 5, follow the order of operations (PEMDAS/BODMAS). First, calculate the expression inside the parentheses: 4 + 2 = 6. Next, perform the multiplication: 3 * 6 = 18. Finally, perform the subtraction: 18 - 5 = 13.

Question 2: What is 40% of 120?

60
48 (Correct answer)
36
50

Correct answer: 48

To find 40% of 120, convert the percentage to a decimal by dividing by 100, which gives 0.40. Then, multiply this decimal by the number: 0.40 * 120. The result of this calculation is 48.

Question 3: If a rectangle has a length of 10 and a width of 4, what is its area?

14
40 (Correct answer)
28
44

Correct answer: 40

The area of a rectangle is calculated by multiplying its length by its width. Given a length of 10 units and a width of 4 units, the area is simply 10 multiplied by 4. Therefore, the area of the rectangle is 40 square units.

Question 4: What is the next number in the sequence: 3, 6, 12, 24, ___?

30
36
48 (Correct answer)
60

Correct answer: 48

This is a geometric sequence where each term is obtained by multiplying the previous term by 2. Following this pattern, 3 * 2 = 6, 6 * 2 = 12, and 12 * 2 = 24. Therefore, the next number in the sequence is 24 * 2, which equals 48.

Question 5: If x = 5, what is the value of 2x + 3?

10
13 (Correct answer)
15
11

Correct answer: 13

To find the value of the expression 2x + 3 when x = 5, substitute 5 for x. This gives 2(5) + 3. First, perform the multiplication: 2 * 5 = 10. Then, add 3: 10 + 3 = 13.

Question 6: A bag contains 3 red balls, 2 blue balls, and 5 green balls. What is the probability of randomly picking a blue ball?

1/2
1/3
1/5 (Correct answer)
2/3

Correct answer: 1/5

To calculate the probability of picking a blue ball, first determine the total number of balls: 3 red + 2 blue + 5 green = 10 balls. There are 2 blue balls. The probability is the number of favorable outcomes (blue balls) divided by the total number of outcomes (all balls), which is 2/10, simplifying to 1/5.

PAPA Mathematics Skills & Reasoning 1

What is the value of 3(4 + 2) - 5?

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