# NCO- Cyber Olympiad (SOF) Class 9: Questions 79 - 83 of 522

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## Question number: 79

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MCQ▾

then equals

### Choices

Choice (4)Response

a.

9

b.

6

c.

0

d.

3

## Question number: 80

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MCQ▾

### Question

A man had 30 mobiles. All but 8 mobile not working, how many was he left with?

### Choices

Choice (4)Response

a.

21

b.

22

c.

77

d.

17

## Question number: 81

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MCQ▾

### Question

In the question, there are four choices. Three of them are like and one different. Find the odd one out.

### Choices

Choice (4)Response

a.

Inkpen

b.

Ballpen

c.

Eraser

d.

Pencil

## Question number: 82

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MCQ▾

### Question

The series of diagrams called PROBLEM FIGURES consists of figures in a particular sequence. You have to pick out the figure from the given options, which should come at the end of problem figures.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 83

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MCQ▾

### Question

How many liters of nitrogen solution should be added to 20 liters of a nitrogen solution to make a solution?

### Choices

Choice (4)Response

a.

60 liters

b.

30 liters

c.

90 liters

d.

20 liters

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