IMO- Mathematics Olympiad Class 8: Questions 460 - 464 of 1029

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1029 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: 460

» Mensuration

MCQ▾

Question

A hoop is resting vertically at staircase as shown in the diagram. AB = 8 cm and BC = 4 cm. The radius of the hoop is________.

A hoop resting vertically at stair case

A Hoop Resting Vertically at Stair Case

Find out the radius of the hoop that is resting vertically at stair case

Choices

Choice (4) Response
a.

12 cm

b.

10 cm

c.

14 cm

d.

11 cm

Question number: 461

» Mensuration

MCQ▾

Question

The radius of a cylinder is doubled but its lateral surface area is unchanged. Then its height must be________.

Choices

Choice (4) Response
a.

Constant

b.

Halved

c.

Doubled

d.

Tripled

Question number: 462

» Mensuration

MCQ▾

Question

Between a square of perimeter 36 cm and a circle of circumference 36 cm, which figure has larger area and by how much?

Choices

Choice (4) Response
a.

Circle, 22 cm2

b.

Square, 22 cm2

c.

Circle, 26 cm2

d. None of the above

Question number: 463

» Mensuration

MCQ▾

Question

Two rectangles ABCD and DBEF are as shown in the figure. The area of rectangle DBEF in square units is________.

Two rectangles ABCD and DBEF with AB = 5 and AD = 12 are given

Two Rectangles ABCD and DBEF With AB = 5 and AD = 12 Are Given

Find out the area of DBEF using given measure (AB = 5 and AD = 12)

Choices

Choice (4) Response
a.

40

b.

90

c.

60

d.

70

Question number: 464

» Mensuration

MCQ▾

Question

A right cylindrical vessel is full with water, how many right cones having half diameter and height as that of right cylinder will be needed to store that water?

Choices

Choice (4) Response
a.

12

b.

25

c.

23

d.

24

Sign In