# NDA (National Defence Academy) Mathematics: Questions 117 - 122 of 384

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## Question number: 117

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MCQ▾

### Question

The seventh term of an is and it’s common difference is greater than What is the common difference of the , so that the product of the third, sixth and seventh terms is greatest?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 118

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Appeared in Year: 2016

MCQ▾

### Question

The interior angles of a polygon of sides are in The smallest angle is and the common difference is How many possible values can have?

### Choices

Choice (4) Response

a.

Two

b.

Three

c.

One

d.

Infinitely many

## Question number: 119

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Appeared in Year: 2016

MCQ▾

### Question

A five-digit number divisible by is to be formed using the digits without repetition of digits. What is the number of ways this can be done?

### Choices

Choice (4) Response

a.

32

b.

96

c.

No number can be formed

d.

48

## Question number: 120

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MCQ▾

What is equal to

### Choices

Choice (4) Response

a.

1/2

b.

- 1

c.

2

d.

- 2

## Question number: 121

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Appeared in Year: 2012

MCQ▾

### Question

If the difference between the roots of is then which one of the following is correct?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 122

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Appeared in Year: 2012

MCQ▾

### Question

1. A continuous random variable can take all value in an interval.
2. A random variable which take a finite number of values is necessarily discrete.
3. Construction of a frequency distribution is based on data, which are discrete.

Which of the above statements are correct?

### Choices

Choice (4) Response

a.

and only

b.

and only

c.

and only

d.

and