# Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 7): Questions 87 - 94 of 122

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## Question number: 87

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

If each side of a cube is tripled, its volume

### Choices

Choice (4) Response

a.

Becomes 27 times

b.

Becomes 6 times

c.

Is doubled

d.

Becomes 4 times

## Question number: 88

» Mental Ability » Basic Arithmetic

MCQ▾

The value of is

### Choices

Choice (4) Response

a.

4.55

b.

1.00

c.

2.30

d.

1.20

## Question number: 89

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

The cost of cultivating a square field at the rate of rupees 240 per hectare is rupees 1200. What is the cost of putting a fence around it at 50 paise per meter?

### Choices

Choice (4) Response

a.

900 rupees

b.

447.21 rupees

c.

600 rupees

d.

400 rupees

## Question number: 90

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Express 0.5 % as a decimal

### Choices

Choice (4) Response

a.

0.12

b.

0.012

c.

0.005

d.

12

## Question number: 91

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

Express the 12 % as a decimal

### Choices

Choice (4) Response

a.

0.12

b.

0.012

c.

12

d.

0.0012

## Question number: 92

» Mental Ability » Basic Arithmetic

MCQ▾

The value of is

### Choices

Choice (4) Response

a.

44

b.

15

c.

35

d.

10

## Question number: 93

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

If 12 men working 5 hours a day can do a piece of work in 5 days; in how days will 10 men working for 3 hours a day to do the same piece of work?

### Choices

Choice (4) Response

a.

11.66 days

b.

30 days

c.

10 days

d.

55 days

## Question number: 94

» Mental Ability » Basic Arithmetic

MCQ▾

### Question

If , find the value of x.

### Choices

Choice (4) Response

a.

62

b.

68

c.

58

d.

26

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