# Mental Ability-Basic Algebra (NCO- Cyber Olympiad (SOF) Class 9): Questions 82 - 87 of 101

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## Question number: 82

» Mental Ability » Basic Algebra

MCQ▾

### Question

An influenza virus is 5,900,000,000 meter in diameter. Which of these expresses this distance in scientific notation?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 83

» Mental Ability » Basic Algebra

MCQ▾

### Question

A 72-cm piece of wire was cut into equal segments, which were then soldered at the ends to form the edges of a cube. What is the volume of the cube?

### Choices

Choice (4) Response

a.

576 cm3

b.

c.

d.

## Question number: 84

» Mental Ability » Basic Algebra

Appeared in Year: 2011

MCQ▾

### Question

Which of the following is correct?

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## Question number: 85

» Mental Ability » Basic Algebra

MCQ▾

### Question

An influenza virus is 0.00000012 meter in diameter. Which of these expresses this distance in scientific notation?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 86

» Mental Ability » Basic Algebra

MCQ▾

### Question

Anita has a broken fan belt on her car. The belt goes around 2 pulleys, whose centers are 30 cm apart and each pulley is 10 cm in diameter. How long should the belt be?

### Choices

Choice (4) Response

a.

88.6 cm

b.

23.6 cm

c.

80.8 cm

d.

91.4 cm

## Question number: 87

» Mental Ability » Basic Algebra

MCQ▾

### Question

Which expression describes the area in square units of a rectangle that has a width of and a length of ?

### Choices

Choice (4) Response

a.

b.

c.

d.

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