IMO- Mathematics Olympiad (SOF) Class 6: Questions 138 - 143 of 1049

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Question number: 138

» Number Systems

MCQ▾

Question

Which sign will come in the ________ to make the expression true?

Choices

Choice (4) Response

a.

>

b.

=

c.

<

d.

None of the above

Question number: 139

» Basic Geometrical Ideas

MCQ▾

Question

Take a triangle. Three straight lines are drawn through the vertices of the triangle as shown. The maximum number of points of intersection is 3. Draw two lines through each vertex of a triangle to meet the opposite sides. What is the maximum number of points of intersection?

Image showing the triangle

Image Showing the Triangle

Find the maximum number of points of intersection

Find again drawing the maximum number of points of intersection when three lines are drawn through each vertex. Without drawing can you guess the maximum points of intersection for 4 lines?

Choices

Choice (4) Response

a.

38

b.

48

c.

42

d.

40

Question number: 140

» Playing With Numbers

MCQ▾

Question

The number 6, 43, 590 is divisible by

Choices

Choice (4) Response

a.

2

b.

6

c.

3

d.

All a. , b. and c. are correct

Question number: 141

» Playing With Numbers

MCQ▾

Question

Number of prime numbers from 20 to 70 are

Choices

Choice (4) Response

a.

11

b.

9

c.

16

d.

13

Question number: 142

» Playing With Numbers

MCQ▾

Question

The two numbers nearest to 2000 which are exactly divisible by each of 2, 3, 4, 5 and 6 is

Choices

Choice (4) Response

a.

1970, 2220

b.

1969, 2220

c.

1860, 2220

d.

1940, 2220

Question number: 143

» Number Systems

MCQ▾

Question

Product of two integer is If one of the integers is , then the other is

Choices

Choice (4) Response

a.

b.

12

c.

d.

6

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