# NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 186 - 194 of 2028

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## Question number: 186

Edit
MCQ▾

### Question

If , and , then the ratio of is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 187

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MCQ▾

### Question

The area of a sector of a circle of radius 8 cm cut off by an arc which is 9.25 cm long is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 188

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MCQ▾

Simplify

### Choices

Choice (4) Response

a.

4

b.

2

c.

d.

## Question number: 189

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MCQ▾

### Question

A fan is listed at Rs. 2000 and a discount of 20 % is offered on the list price. What additional discount must be offered to the customer to bring the net price to 1580?

### Choices

Choice (4) Response

a.

1.25%

b.

2.75%

c.

3%

d.

5%

## Question number: 190

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MCQ▾

### Question

If 225K is a perfect cube, then the value of K is:

### Choices

Choice (4) Response

a.

3

b.

5

c.

15

d.

14

## Question number: 191

Edit
MCQ▾

Simplify

### Choices

Choice (4) Response

a.

b.

6

c.

5

d.

## Question number: 192

Edit
MCQ▾

### Question

The ratio of third proportional to 24 and 60 and the mean proportional between 18 and 50 is:

### Choices

Choice (4) Response

a.

3: 2

b.

1: 5

c.

5: 3

d.

5: 1

## Question number: 193

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MCQ▾

The value of is:

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 194

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MCQ▾

### Question

If , the least value of ‘a’ is:

### Choices

Choice (4) Response

a.

6

b.

3

c.

9

d.

Question does not provide sufficient data or is vague

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