IMO- Mathematics Olympiad Class 9: Questions 370 - 375 of 919

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 370

» Coordinate Geometry

MCQ▾

Question

If the point (-7, k) is on the graph of the equation 4x+y=12 find the value of k?

Choices

Choice (4) Response

a.

20

b.

5

c.

15

d.

10

Question number: 371

» Surface Area and Volumes

MCQ▾

Question

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

Choices

Choice (4) Response

a.

800%

b.

700%

c.

100%

d.

200%

Question number: 372

» Surface Area and Volumes

MCQ▾

Question

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

Choices

Choice (4) Response

a.

1386 sq. cm

b.

2772 sq. cm

c.

4158 sq. cm

d.

5544 sq. cm

Question number: 373

» Triangles and Circles

MCQ▾

Question

In the given figure, ABC=130˚ , where A, B and C are points on a circle with center O. then OAC is ________

Given ABC angle is 130, where A, B and C are points on a circle

Given ABC Angle Is 130, Where a, B and C Are Points on a Circle

ABC angle is 130, where A, B and C are points on a circle with center O, then find the ∠OAC

Choices

Choice (4) Response

a.

10°

b.

40°

c.

30°

d.

20°

Question number: 374

» Triangles and Circles

MCQ▾

Question

From the adjoining figure, the value of x is ________

PQR triangle and TRS triangle are adjoining

PQR Triangle and TRS Triangle Are Adjoining

PQR triangle and TRS triangle are adjoining, and find value of x

Choices

Choice (4) Response

a.

175˚

b.

160˚

c.

190˚

d.

160˚

Question number: 375

» Surface Area and Volumes

MCQ▾

Question

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.

3

b.

6

c.

4

d.

8

f Page
Sign In