# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad (SOF) Class 7): Questions 108 - 115 of 122

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## Question number: 108

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

In an election, two candidates contested. A candidate secured 40 % of the valid votes and is elected by a majority of 200 votes. Find the total number of valid votes.

### Choices

Choice (4) Response

a.

700

b.

1000

c.

880

d.

450

## Question number: 109

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

In an election, two candidates contested. A candidate secured 80 % of the valid votes and is elected by a majority of 156 votes. Find the total number of valid votes.

### Choices

Choice (4) Response

a.

610

b.

880

c.

700

d.

390

## Question number: 110

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

A man sold a radio for 1320 and gained 10%, the radio was bought for?

### Choices

Choice (4) Response

a.

1200

b.

1790

c.

980

d.

850

## Question number: 111

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

3 children and 9 men completed a certain piece of work in 12 days. Each children takes thrice the time taken by a man to finish the work. In how many days will 9 men finish the same work?

### Choices

Choice (4) Response

a.

8

b.

13.3

c.

12.5

d.

15.6

## Question number: 112

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Two cubes have volumes in the ratio 1: 8. Then the ratio of their sides is

### Choices

Choice (4) Response

a.

1: 8

b.

1: 18

c.

1: 2

d.

1: 4

## Question number: 113

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

A man sold a radio for Rs. 1274 and gained 30%, the radio was bought for?

### Choices

Choice (4) Response

a.

850

b.

1790

c.

1850

d.

980

## Question number: 114

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

28 % of 450 is ________.

### Choices

Choice (4) Response

a.

140

b.

112

c.

126

d.

125

## Question number: 115

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Human blood WBC’s are expressed in terms of number of red blood cells per cubic mm. Express 9.9 million blood cells per cubic mm terms of scientific notation.

### Choices

Choice (4) Response

a.

99

b.

0.99

c.

0.99

d.

9.9

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