# Mental Ability-Basic Algebra (NCO- Cyber Olympiad Class 9): Questions 81 - 86 of 101

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 410 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 300.00 or

## Question number: 81

» Mental Ability » Basic Algebra

MCQ▾

### Question

If , find the value of .

### Choices

Choice (4) Response

a.

445

b.

488

c.

250

d.

446

## 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

f Page