# NDA (National Defense Academy) Mathematics: Questions 337 - 343 of 384

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## Question number: 337

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Appeared in Year: 2012

MCQ▾

### Question

What is the eccentricity of the conic section

### Choices

Choice (4)Response

a.

b.

2/3

c.

d.

## Question number: 338

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MCQ▾

### Question

In a city, three daily newspaper are published, read read C; read B and C; o not read any of the three newspaper

What is the percentage of persons who read only one paper? (Take )

### Choices

Choice (4)Response

a.

48%

b.

38%

c.

46%

d.

None of the above

## Question number: 339

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MCQ▾

### Question

What is the value of

### Choices

Choice (4)Response

a.

b.

c.

d.

0

## Question number: 340

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Appeared in Year: 2012

MCQ▾

### Question

What is the percentage of persons who read all the three papers?

### Choices

Choice (4)Response

a.

40 %

b.

30 %

c.

20 %

d.

25 %

## Question number: 341

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MCQ▾

### Question

What are the direction ratios of normal to the plane

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question number: 342

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Appeared in Year: 2012

MCQ▾

### Question

If two rows of a determinant are identical, then what is the value of the determinant?

### Choices

Choice (4)Response

a.

Can be any real value

b.

1

c.

- 1

d.

0

## Question number: 343

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MCQ▾

### Question

What is the percentage of persons who read all the three papers?

### Choices

Choice (4)Response

a.

20 %

b.

25 %

c.

28 %

d.

32 %

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