# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 367 - 373 of 931

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## Question 367

### Question

MCQ▾

In the figure, the value of x if , is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 368

### Question

MCQ▾

If the point (-7, k) is on the graph of the equation find the value of k?

### Choices

Choice (4)Response

a.

5

b.

10

c.

20

d.

15

## Question 369

### Question

MCQ▾

If the radius of a sphere is doubled, then its volume is increased by________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 370

### Question

MCQ▾

Volume of a hemisphere is 19404 cubic cm. The total surface area is ________.

### Choices

Choice (4)Response

a.

1386 sq. cm

b.

5544 sq. cm

c.

2772 sq. cm

d.

4158 sq. cm

## Question 371

### Question

MCQ▾

In the given figure, , where A, B and C are points on a circle with center O. then is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 372

### Question

MCQ▾

From the adjoining figure, the value of x is ________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 373

### Question

MCQ▾

A cylindrical rod whose height is 8 times of its radius is melted and recast into spherical balls of same radius. The numbers of balls will be________

### Choices

Choice (4)Response

a.

8

b.

6

c.

3

d.

4