# Mental Ability (NCO- Cyber Olympiad (SOF) Class 9): Questions 106 - 112 of 219

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## Question number: 106

» Mental Ability » Basic Statistics

MCQ▾

### Question

Which of the following shows the proper relation?

1. Tall men, 2. Black haired people, 3. Indians

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 107

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

How much pure alcohol should be added to 400ml of a 15 % solution to make its strength 32%?

### Choices

Choice (4) Response

a.

100 ml

b.

95 ml

c.

90 ml

d.

80 ml

## Question number: 108

» Mental Ability » Basic Algebra

MCQ▾

### Question

What is the solution to ?

### Choices

Choice (4) Response

a.

15

b.

35

c.

45

d.

25

## Question number: 109

» Mental Ability » Basic Algebra

MCQ▾

### Question

What is the slope of the line ?

### Choices

Choice (4) Response

a.

-4

b.

5

c.

d.

## Question number: 110

» Mental Ability » Basic Algebra

MCQ▾

### Question

Distance between the points (8, 10) and (4, -5) is

### Choices

Choice (4) Response

a.

b.

400

c.

d.

## Question number: 111

» Mental Ability » Basic Algebra

MCQ▾

### Question

If , find the value of .

### Choices

Choice (4) Response

a.

32

b.

45

c.

34

d.

25

## Question number: 112

» Mental Ability » Basic Algebra

MCQ▾

### Question

Secants and intersect the circle at R and O respectively. What is the length of ?

### Choices

Choice (4) Response

a.

b.

17

c.

26

d.

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