# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad (SOF) Class 5): Questions 17 - 24 of 147

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## Question number: 17

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

8 km 100 m equals ________.

### Choices

Choice (4) Response

a.

8.1 km

b.

508.0km

c.

0.5080km

d.

5.08 km

## Question number: 18

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Gita is mailing 3 books to her cousin. Each book is 7 inches long and 4 inches wide. She will mail the books together in 1 box. She wants to determine the size of the box she needs to mail the books. What information does she need?

### Choices

Choice (4) Response

a.

The number of pages in each book

b.

The thickness of each book

c.

The weight of the books.

d.

The distance the books will be sent

## Question number: 19

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

5 Mins + 50secs = ________

### Choices

Choice (4) Response

a.

3mins 170 secs

b.

3 mins 65 secs

c.

2 mins 90 secs

d.

4 mins 85 secs

## Question number: 20

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

5 km 80 m equals ________.

### Choices

Choice (4) Response

a.

5.08 km

b.

50.80 km

c.

0.5080km

d.

508.0km

## Question number: 21

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The smallest four digit number that can be formed using 8,6, 3, and 2 is ________.

### Choices

Choice (4) Response

a.

6328

b.

6382

c.

2368

d.

2386

## Question number: 22

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The cost of 5 toys are Rs. 250. Find how many toys cost is Rs. 500?

### Choices

Choice (4) Response

a.

15

b.

21

c.

20

d.

10

## Question number: 23

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Which of the following expression below is true?

### Choices

Choice (4) Response

a.

2 × (3 + 4) = 7 × (2 × 1)

b.

c.

d.

## Question number: 24

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Monica divided a problem this way:

Her teacher marked it wrong. Which of the following is the correct answer and explanation?

### Choices

Choice (4) Response

a.

Quotient 15 with a remainder of 2, because 15 3 = 45 and 45 + 5 =50

b.

Quotient 15 with a remainder of 0, because 15 4 = 60 and 60 - 1 = 59.

c.

Quotient 13 with a remainder of 0, because 13 =169.

d.

All of the above

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