# Mental Ability (NCO- Cyber Olympiad (SOF) Class 6): Questions 1 - 8 of 394

Access detailed explanations (illustrated with images and videos) to 722 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 400.00 or

How to register?

## Question number: 1

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

What is the least common factor (LCM) of 8 and 10?

### Choices

Choice (4) Response

a.

40

b.

80

c.

16

d.

24

## Question number: 2

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

What is the least common factor (LCM) of 14 and 21?

### Choices

Choice (4) Response

a.

42

b.

21

c.

70

d.

45

## Question number: 3

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

What is the least common factor (LCM) of 45 and 35?

### Choices

Choice (4) Response

a.

90

b.

45

c.

54

d.

30

## Question number: 4

» Mental Ability » Number Games » Number Series

Edit
MCQ▾

### Question

In the given series find the number in place of? .

23,19, ? , 12,9

### Choices

Choice (4) Response

a.

15

b.

16

c.

14

d.

17

## Question number: 5

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

John charged Rs. 15.75 for each birdhouse he built. If the material costs Rs. 10.25 Per house, how much profit could he earn after selling five houses?

### Choices

Choice (4) Response

a.

Rs. 78.75

b.

Rs. 27.50

c.

Rs. 25.50

d.

Rs. 51.25

## Question number: 6

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

The number that should replace the triangle so that the following forms a proportion is________.

12,21,8, ∆

### Choices

Choice (4) Response

a.

18

b.

16

c.

14

d.

20

## Question number: 7

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

A number is divisible by 5 if, ________.

### Choices

Choice (4) Response

a.

The last digit is 5 or 0

b.

The sum of the digits is divisible by 5

c.

The sum of the digits is divisible by 10

d.

Question does not provide sufficient data or is vague

## Question number: 8

» Mental Ability » Basic Geometry

Edit
MCQ▾

### Question

Side BC of an ∆ ABC has been produced to point D. If ACD = and A = then B = ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

Developed by: