# NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 682 - 690 of 1971

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## Question number: 682

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MCQ▾

### Question

The sum of digits is divisible by 9, the number is:

### Choices

Choice (4) Response

a.

256

b.

300

c.

279

d.

164

## Question number: 683

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MCQ▾

### Question

The unique number is:

### Choices

Choice (4) Response

a.

1

b.

2

c.

3

d.

0

## Question number: 684

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MCQ▾

### Question

41 and 51 are ________ numbers.

### Choices

Choice (4) Response

a.

Composite

b.

Twin prime

c.

Co-prime

d.

Prime

## Question number: 685

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MCQ▾

### Question

Two fractions are equivalent if their cross multiplications are:

### Choices

Choice (4) Response

a.

1

b.

Not equal

c.

Equal

d.

0

## Question number: 686

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MCQ▾

### Question

Three–sixths of 12 litres ________ litres

### Choices

Choice (4) Response

a.

8

b.

2

c.

4

d.

6

## Question number: 687

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MCQ▾

### Question

________ is the smallest prime number.

### Choices

Choice (4) Response

a.

1

b.

5

c.

4

d.

2

## Question number: 688

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MCQ▾

### Question

The exact value of euro compared to the Indian rupee changes from day to day. On a given day, Rs. 216 was worth 4 euros. How many euros would Rs. 324 have been worth on that day?

### Choices

Choice (4) Response

a.

8

b.

6

c.

10

d.

11

## Question number: 689

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MCQ▾

### Question This Image Shows the Calculation of Multiplication In given calculation find the incorrect digit

Answer is incorrect due to a mistake in one of the digits in the calculation step. The incorrect digit is:

### Choices

Choice (4) Response

a.

0

b.

5

c.

1

d.

6

## Question number: 690

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MCQ▾

### Question

A number which when divided by 2, leaves zero as remainder, is ________ number.

### Choices

Choice (4) Response

a.

Odd

b.

Even

c.

Twin prime

d.

Prime

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