IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 576 - 581 of 929

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Question number: 576

» Polynomials

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MCQ▾

Question

If and , then value of is________.

Choices

Choice (4)Response

a.

1890

b.

1895

c.

1880

d.

1885

Question number: 577

» Everyday Mathematics

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MCQ▾

Question

A man purchases an blander whose printed price is Rs. 2200. If he received two successive discounts of and , he paid________

Choices

Choice (4)Response

a.

Rs. 1221

b.

Rs. 1232

c.

Rs. 1121

d.

Rs. 1132

Question number: 578

» Linear Equations in Two Variables

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MCQ▾

Question

If , then values of x are________

Choices

Choice (4)Response

a.

x = 1 and x = 5

b.

x = 5 and x=-1

c.

x = 2 and x = 3

d.

x=-1 and x=-3

Question number: 579

» Analytical Reasoning and Logical Reasoning

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MCQ▾

Question

Group the given figures into three classes using each figure only once.

The different shape available in this image and find the group

The Different Shape Available in this Image and Find the Group

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 580

» Statistics and Probability

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MCQ▾

Question

In a class test, in English, 25 students scored 70 marks, 40 students scored 65 marks and 35 scored 50 marks. The mean of their score is (approximately) ________

Choices

Choice (4)Response

a.

45 marks

b.

29 marks

c.

61 marks

d.

65 marks

Question number: 581

» Statistics and Probability

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MCQ▾

Question

The average of 20 numbers is calculated as 30. It is discovered later on that while calculating the average one number, namely 40 was wrongly read as 20. The correct average is________

Choices

Choice (4)Response

a.

25

b.

28

c.

31

d.

26

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