IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 844 - 849 of 929

Access detailed explanations (illustrated with images and videos) to 929 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 844

» Statistics and Probability

Edit
MCQ▾

Question

The mean of 24 observations is 35. If the mean of the first 12 observations is 31 and that of the last 12 observations is 38, then the 12th observation is ________

Choices

Choice (4) Response

a.

15

b.

11

c.

14

d.

12

Question number: 845

» Analytical Reasoning and Logical Reasoning

Edit
MCQ▾

Question

Choose the correct alternative that will continue the same pattern. 6,11,21,36,56, (…. . )

Choices

Choice (4) Response

a.

91

b.

42

c.

81

d.

51

Question number: 846

» Linear Equations in Two Variables

Edit
MCQ▾

Question

Which equation satisfies the data in the table?

Values of x and y are given the table

Find the equation that satisfies the value of x and y

X

3

5

7

9

Y

2

4

6

8

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 847

» Polynomials

Edit
MCQ▾

Question

Factors of

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 848

» Statistics and Probability

Edit
MCQ▾

Question

In a mathematics test given to 15 students, the following marks (out of 100) is recorded: 45,56,78,54,75,34,68,98,87,99,90,76,55,77,68, then mean, median and mode of this data are respectively ________

Choices

Choice (4) Response

a.

70.67,75,68

b.

55.26,78,65

c.

70.67,77,68

d.

60.67,75,65

Question number: 849

» Everyday Mathematics

Edit
MCQ▾

Question

A man purchased two clocks A and B at a total cost Rs. 650. He sells A at profit and B at a loss of and gets the same selling price for both the clocks. What are the purchasing prices of A and B respectively?

Choices

Choice (4) Response

a.

Rs. 275, Rs. 375

b.

Rs. 300, Rs. 350

c.

Rs. 250, Rs. 400

d.

Rs. 225, Rs. 425