IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 848 - 853 of 931

Access detailed explanations (illustrated with images and videos) to 931 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

Question 848

Question

MCQ▾

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 849

Question

MCQ▾

A man purchased two clocks A and B at a total cost ₹ 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.

₹ 275, ₹ 375

b.

₹ 300, ₹ 350

c.

₹ 250, ₹ 400

d.

₹ 225, ₹ 425

Question 850

Question

MCQ▾

The sum of the x-coordinates of the intersection of and , is ________.

Choices

Choice (4)Response

a.

b.

0

c.

d.

Question 851

Question

MCQ▾

Average of 10 numbers is 12. What should be added as 11th number to make the average 13?

Choices

Choice (4)Response

a.

28

b.

23

c.

30

d.

25

Question 852

Question

MCQ▾

Mathematics is related to numbers in the same way as history is related to ________

Choices

Choice (4)Response

a.

Dates

b.

Events

c.

Wars

d.

People

Question 853

Question

MCQ▾

Age of Smith՚s father is 4 times of his age. If 5 years ago, father՚s age was 7 times of the age of his son at that time. What is Smith՚s father present age?

Choices

Choice (4)Response

a.

40 years

b.

60 years

c.

45 years

d.

51 years