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

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## Question number: 1

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

40

b.

24

c.

80

d.

16

## Question number: 2

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

45

b.

21

c.

70

d.

42

## Question number: 3

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

90

b.

54

c.

30

d.

45

## Question number: 4

» Mental Ability » Number Games » Number Series

MCQ▾

### Question

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

23, 19, ? , 12, 9

### Choices

Choice (4) Response

a.

15

b.

17

c.

16

d.

14

## Question number: 5

» Mental Ability » Basic Arithmetic

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. 51.25

d.

Rs. 25.50

## Question number: 6

» Mental Ability » Basic Arithmetic

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.

16

b.

14

c.

18

d.

20

## Question number: 7

» Mental Ability » Basic Arithmetic

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

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.

f Page