# NCO- Cyber Olympiad (SOF) Class 8: Questions 231 - 237 of 510

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## Question number: 231

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MCQ▾

### Question

There are 400 students in the tenth grade. The ratio of girls to boys is 3: 5. What percent of the students are girls?

### Choices

Choice (4) Response

a.

150%

b.

50%

c.

d.

## Question number: 232

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MCQ▾

### Question

What is the next number in this sequence?

18,54,162,486, ?

### Choices

Choice (4) Response

a.

1,456

b.

1,458

c.

1,278

d.

2,828

## Question number: 233

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MCQ▾

### Question

The surface area of a cube is . Its volume is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 234

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MCQ▾

### Question

The volume of a cube is . Its surface area is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 235

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MCQ▾

### Question

What is the value of , when ?

### Choices

Choice (4) Response

a.

6

b.

9

c.

12

d.

3

## Question number: 236

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MCQ▾

### Question

If the cost price of 12 articles be equal to the selling price of 15 articles, the loss percent is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 237

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MCQ▾

### Question

The given figure shows a square inscribed in a larger square. What is the area of the smaller square?

### Choices

Choice (4) Response

a.

576square units

b.

49square units

c.

961square units

d.

625square units