# Mental Ability (NCO- Cyber Olympiad (SOF) Class 5): Questions 65 - 72 of 257

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## Question number: 65

» Mental Ability » Number Games » Number Series

MCQ▾

### Question

Find the odd term out in 3, 5, 11, 14, 17, 21

### Choices

Choice (4) Response

a.

21

b.

14

c.

17

d.

3

## Question number: 66

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Vina brought two 3000 millilitres bottles of water. How many litres of water is that?

### Choices

Choice (4) Response

a.

5 litres

b.

10 litres

c.

6 litres

d.

20 litres

## Question number: 67

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Sum of all prime numbers between 1 to 11?

### Choices

Choice (4) Response

a.

10

b.

30

c.

28

d.

25

## Question number: 68

» Mental Ability » Basic Geometry

MCQ▾

### Question

The area of a square is 4 square centimetres. How long is one side?

### Choices

Choice (4) Response

a.

16

b.

2

c.

4

d.

Question does not provide sufficient data or is vague

## Question number: 69

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Which one is not prime number?

### Choices

Choice (4) Response

a.

11

b.

61

c.

71

d.

91

## Question number: 70

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

How many Box did the Boxman sell in January?

### Choices

Choice (4) Response

a.

24 Box

b.

8 Box

c.

5 Box

d.

3 Box

## Question number: 71

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

12 = 12 + ( + + ). Here, stands for ________.

### Choices

Choice (4) Response

a.

2

b.

1/4

c.

2/4

d.

3

## Question number: 72

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Which expression fits to give total number of plus sign in the diagram?

### Choices

Choice (4) Response

a.

3+ (3 + 4)

b.

c.

d.

f Page