# Mental Ability (NCO- Cyber Olympiad (SOF) Class 9): Questions 136 - 140 of 219

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## Question number: 136

» Mental Ability » Basic Statistics

MCQ▾

### Question

This question is based on the adjoining figure in which

1. Trapezoid represents educated,

2. Right triangle represents the management,

3. Pentagon represents the computer science and

4. Rectangle represents the PH. D person.

The number indicating the educated PH. D person who is computer science but not management.

### Choices

Choice (4) Response

a.

1

b.

3

c.

9

d.

10

## Question number: 137

» Mental Ability » Basic Algebra

MCQ▾

### Question

The distance between the points (-2, -4) and (3,8) is

### Choices

Choice (4) Response

a.

b.

169

c.

18

d.

13

## Question number: 138

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The sum of two angles of a triangles is 120° and their difference is 20°, find all the angles of the triangle.

### Choices

Choice (4) Response

a.

40°, 50°, 90°

b.

60°, 58°, 70°

c.

50°, 40°, 90°

d.

70°, 50°, 60°

## Question number: 139

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

How many liters of 30 % alcohol solution should be added to 50 liters of a 60 % alcohol solution to make a 40 % solution?

### Choices

Choice (4) Response

a.

100 liters

b.

80 liters

c.

40 liters

d.

60 liters

## Question number: 140

» Mental Ability » Basic Geometry

MCQ▾

### Question

Select the figure from the four options, which when placed in the blank space of the problem figure would complete the pattern

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page