IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 850  856 of 929
Access detailed explanations (illustrated with images and videos) to 929 questions. Access all new questions we will add tracking exampattern 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: 850
Question
The sum of the xcoordinates of the intersection of and , is ________.
Choices
Choice (4)  Response  

a. 


b.  0 

c. 


d. 


Question number: 851
Question
Average of 10 numbers is 12. What should be added as 11^{th} number to make the average 13?
Choices
Choice (4)  Response  

a.  28 

b.  23 

c.  30 

d.  25 

Question number: 852
» Analytical Reasoning and Logical Reasoning
Question
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 number: 853
Question
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 

Question number: 854
Question
If , then , is ________.
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  0 

d.  1 

Question number: 855
Question
A and B invest in a business in the ratio. If of the total profit goes to charity and A’s share is Rs. 855, the total profit is ________
Choices
Choice (4)  Response  

a.  Rs. 1500 

b.  Rs. 1537.50 

c.  Rs. 1425 

d.  Rs. 1576 

Question number: 856
Question
If the mean of 17 observations is 22 and that of another 18 observations is 10, then the mean of 35 observations is ________
Choices
Choice (4)  Response  

a.  24.8 

b.  15 

c.  15.83 

d.  24 
