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

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## Question 367

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### Question

MCQ▾

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

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 368

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### 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

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### 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

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### 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

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### Question

MCQ▾

In the given figure, , where A, B and C are points on a circle with center O. then is ________ Given ABC Angle is 130, Where a, B and C Are Points on a Circle

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 372

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### Question

MCQ▾

From the adjoining figure, the value of x is ________

### Choices

Choice (4)Response
a.
b.
c.
d.

## Question 373

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### 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