# NCO- Cyber Olympiad Class 7: Questions 275 - 281 of 416

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## Question number: 275

MCQ▾

### Question

A certain code ROSE is coded as SPTF. How would LOTUS be code in that code?

### Choices

Choice (4) Response

a.

MPOVT

b.

MPUVS

c.

MPNVT

d.

MPUVT

## Question number: 276

MCQ▾

### Question

28 % of 450 is ________.

### Choices

Choice (4) Response

a.

140

b.

112

c.

126

d.

125

## Question number: 277

MCQ▾

### Question

In a certain code, MONKEY is coded as YEKNOM. How would DONKEY be code in that code?

### Choices

Choice (4) Response

a.

INOTAERL

b.

IONTEARC

c.

ERCITANO

d.

YEKNOD

## Question number: 278

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

## Question number: 279

MCQ▾

### Question

The ratio of the number of boys and girls in a college is 4: 3. If the percentage increase in the number of boys and girls be 17 % and 22 % respectively, what will be the new ratio?

### Choices

Choice (4) Response

a.

12: 21

b.

5: 9

c.

21: 22

d.

34: 33

## Question number: 280

MCQ▾

### Question

Express 0.11 as a vulgar fraction.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 281

MCQ▾

### Question

A boat covers a certain distance downstream in 1 hour, while it comes back in 1 hours. If the speed of the stream be 2 kmph, what is the speed of the boat in still water?

### Choices

Choice (4) Response

a.

11 kmps

b.

15 kmps

c.

5 kmps

d.

8 kmps

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