# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 336 - 345 of 1484

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## Question number: 336

Edit
MCQ▾

### Question

In a geometric sequence of real numbers, the sum of the first two terms is 7 and the sum of the first six terms is 399. The sum of the first four terms is

### Choices

Choice (4)Response

a.

56

b.

63

c.

14

d.

49

## Question number: 337

Edit
MCQ▾

### Question

What should be added to to get ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 338

Edit
MCQ▾

### Question

If then = ________.

### Choices

Choice (4)Response

a.

b.

0

c.

d.

All of the above

## Question number: 339

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MCQ▾

### Question

Find ‘a’ and ‘b’ in order that may be exactly divisible by .

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 340

Edit
MCQ▾

= ________.

### Choices

Choice (4)Response

a.

1

b.

c.

d.

None of the above

## Question number: 341

Edit
MCQ▾

### Question

The value of , if is exactly divisible by is

### Choices

Choice (4)Response

a.

- 45

b.

- 54

c.

36

d.

121

## Question number: 342

Edit
MCQ▾

### Question

The product of two consecutive numbers is 30. Find them.

### Choices

Choice (4)Response

a.

5, -6

b.

5,6

c.

-5,6

d.

15, -2

## Question number: 343

Edit
MCQ▾

### Question

If is divisible by then ________.

### Choices

Choice (4)Response

a.

Either or

b.

Neither nor

c.

d.

## Question number: 344

Edit
MCQ▾

### Question

The sum of all two digit natural numbers with unit digit ‘0’ is

### Choices

Choice (4)Response

a.

405

b.

400

c.

450

d.

490

## Question number: 345

Edit
MCQ▾

### Question

If and the sequence x, y and x, y each are in AP, then = ________.

### Choices

Choice (4)Response

a.

b.

1

c.

d.

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