# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad (SOF) Class 8): Questions 1 - 9 of 96

Access detailed explanations (illustrated with images and videos) to 510 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. 350.00 or

How to register?

## Question number: 1

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

If 12 workers can color 24 houses in 8 days, how many houses can 6 workers color in 4 days?

### Choices

Choice (4) Response

a.

3

b.

24

c.

6

d.

12

## Question number: 2

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

A certain sum of simple interest becomes double in 10 years. In how many years will it become four times?

### Choices

Choice (4) Response

a.

40 years

b.

20 years

c.

5 years

d.

50 years

## Question number: 3

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

=?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 4

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

=?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 5

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

The difference of two numbers is 9 and the difference of their square is 54. The sum of the number is________

### Choices

Choice (4) Response

a.

8

b.

4

c.

6

d.

2

## Question number: 6

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

=?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 7

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

A certain sum of simple interest becomes its three times in 30 years. In how many years will it becomes double?

### Choices

Choice (4) Response

a.

20 years

b.

5 years

c.

60 years

d.

15 years

## Question number: 8

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

If 16 employees can complete 32 tasks in 8 days, how many tasks can 8 employees complete in 4 days?

### Choices

Choice (4) Response

a.

16

b.

8

c.

12

d.

14

## Question number: 9

» Mental Ability » Basic Arithmetic

Edit
MCQ▾

### Question

The sum of two numbers is 14 and the difference of their square is 28. The difference of the number is________

### Choices

Choice (4) Response

a.

2

b.

4

c.

0

d.

1

Developed by: