IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 431 - 435 of 931

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Question 431

Question

MCQ▾

The edge of a cube is 20 cm. how many small cubes of 5 cm edge can be formed from this cube?

Choices

Choice (4)Response

a.

64

b.

100

c.

4

d.

32

Question 432

Question

MCQ▾

A corn cob somewhat like a cone, has the radius of the broadest end as 2.1 cm and length as 20 cm. If each 1 cm 2 of the surface of the cob carries an average of 3 grains, find how many grains you would find on the entire cob?

Given the Corn Cob Somewhat like a Cone

Choices

Choice (4)Response

a.

550 grains

b.

670 grains

c.

881 grains

d.

980 grains

Question 433

Question

MCQ▾

Points P, Q, R and S divide the sides of rectangle ABCD in the ratio , as shown in the figure. What fraction of area of the rectangle is the area of the parallelogram PQRS?

Given the Points P, Q, R and S Divide the Sides of Rectangle ABCD

Choices

Choice (4)Response

a.

b.

c.

d.

Question 434

Question

MCQ▾

ABCD is a square of side length 1. EFGH are the points on AE = EB, 2BF = FC, 3CG = GD, 4DH = HA then what is the area of the quadrilateral EFGH?

Image Shows the Area of the Quadrilateral EFGH

Choices

Choice (4)Response

a.

b.

c.

d.

Question 435

Question

MCQ▾

Rectangular plot area is and the length is 22 m. Also perimeter is ________

Choices

Choice (4)Response

a.

85 m

b.

84 m

c.

82 m

d.

83 m