# General SAT (College Board) Mathematics: Questions 18 - 23 of 101

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## Question number: 18

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Appeared in Year: 2008

MCQ▾

### Question

In the figure above, . What is the value of y? (January)

### Choices

Choice (5)Response

a.

60

b.

55

c.

70

d.

65

e.

75

## Question number: 19

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Appeared in Year: 2010

MCQ▾

### Question

The average (arithmetic mean) of five numbers is 80. If a sixth number, 80, is added to the group, what is the average of the six numbers? (January)

### Choices

Choice (5)Response

a.

60

b.

30

c.

80

d.

90

e.

75

## Question number: 20

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Appeared in Year: 2010

MCQ▾

### Question

In the figure above, is an obtuse angle, what is the value of ? (January)

### Choices

Choice (5)Response

a.

30

b.

58

c.

10

d.

15

e.

64

## Question number: 21

Edit

Appeared in Year: 2008

MCQ▾

### Question

In the figure above , what is the area of triangle AEC? (January)

### Choices

Choice (5)Response

a.

6

b.

1

c.

4

d.

2

e.

8

## Question number: 22

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Appeared in Year: 2010

MCQ▾

### Question

In the figure above, line bisects , and the measure of is . What is the value of ? (January)

### Choices

Choice (5)Response

a.

160

b.

40

c.

140

d.

80

e.

120

## Question number: 23

Edit

Appeared in Year: 2010

MCQ▾

### Question

A colony of bacteria grows such that days after the start of an experiment, the number of bacteria is , where is the number of bacteria at the start of the experiment. If there are 10,000 bacteria 6 days after the experiment’s start, what is the value of ? (January)

### Choices

Choice (5)Response

a.

5,000

b.

1,250

c.

2,500

d.

3,333

e.

1,667

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