Surface Area and Volumes (IMO- Mathematics Olympiad Class 9): Questions 43 - 48 of 104

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Question number: 43

» Surface Area and Volumes

MCQ▾

Question

If the volumes of two cones are in the ratio 2: 3 and their diameters are in the ratio 3: 7, and then the ratio of their heights is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 44

» Surface Area and Volumes

MCQ▾

Question

The length of canvas 1.2 m wide required building a conical tent of height 14 m and also on the floor of floor area Equation , breadth of canvas is ________

Choices

Choice (4) Response

a.

665 m

b.

770 m

c.

490 m

d.

860 m

Question number: 45

» Surface Area and Volumes

MCQ▾

Question

If the altitude of an equilateral triangle is Equation , its area is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 46

» Surface Area and Volumes

MCQ▾

Question

What change in percent is made in the area of a rectangle by increasing its length by Equation and breadth by Equation ?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 47

» Surface Area and Volumes

MCQ▾

Question

The base of a prism is a right angle triangle and the two sides containing the right angle are 8 cm and 15 cm. if its height is 20 cm, then the volume of the prism is ________

Choices

Choice (4) Response

a.

600 c. cm.

b.

1200 c. cm.

c.

300 c. cm.

d.

160 c. cm.

Question number: 48

» Surface Area and Volumes

MCQ▾

Question

A parallelogram and a trapezoid are equal in area. They also have the same altitudes. If the base of the parallelogram is 14 inches, the sum of the parallel sides of the trapezoid is ________

Choices

Choice (4) Response

a.

14 inches

b.

28 inches

c.

26 inches

d.

All of the above

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