Basic Aptitude Test On Math And Biology! Quiz

1. Solve for n: 4n = 28

32

24

7

6

To solve for n, we need to isolate the variable. We can do this by dividing both sides of the equation by 4, since 4 is multiplied by n. This gives us n = 7. Therefore, the value of n that satisfies the equation 4n = 28 is 7.

Explanation

To solve for n, we need to isolate the variable. We can do this by dividing both sides of the equation by 4, since 4 is multiplied by n. This gives us n = 7. Therefore, the value of n that satisfies the equation 4n = 28 is 7.

2. Solve if: a = 4, b = 9, c = 5 a + b - c = _____

6

18

17

8

The given equation is a + b - c = 4 + 9 - 5 = 8.

Explanation

The given equation is a + b - c = 4 + 9 - 5 = 8.

3. Solve if: a = 4, b = 9, c = 5 3a + 7 = _____

19

21

2013

14

To solve the expression 3a + 7, we substitute the given values of a, b, and c into the expression. Since a is given as 4, we have 3(4) + 7. Simplifying this expression, we get 12 + 7 = 19. Therefore, the correct answer is 19.

Explanation

To solve the expression 3a + 7, we substitute the given values of a, b, and c into the expression. Since a is given as 4, we have 3(4) + 7. Simplifying this expression, we get 12 + 7 = 19. Therefore, the correct answer is 19.

4. The different joints in our body are: (check all that are correct)

Doorknob

Hinge

Immovable

Swinging

Pivot

Ball and Socket

Ribs

The correct answer is Hinge, Immovable, Pivot, Ball and Socket. These are the different types of joints found in our body. A hinge joint allows movement in only one direction, like the movement of a door on its hinges. An immovable joint, also known as a fixed joint, does not allow any movement, such as the joints between the bones of the skull. A pivot joint allows rotational movement, like the movement of the head on the neck. A ball and socket joint allows for a wide range of movement in all directions, like the movement of the hip and shoulder joints.

Explanation

The correct answer is Hinge, Immovable, Pivot, Ball and Socket. These are the different types of joints found in our body. A hinge joint allows movement in only one direction, like the movement of a door on its hinges. An immovable joint, also known as a fixed joint, does not allow any movement, such as the joints between the bones of the skull. A pivot joint allows rotational movement, like the movement of the head on the neck. A ball and socket joint allows for a wide range of movement in all directions, like the movement of the hip and shoulder joints.

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