IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 687  695 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. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.
Rs. 450.00 or
How to register?
Question number: 687
Question
Given that is a solution of . The other solutions are ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 688
Question
A card is drawn at random from a well shuffled pack of 52 cards. The probability that the ‘9’ of red color card is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 689
Question
=
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 690
Question
If and , then value of y when , is________.
Choices
Choice (4)  Response  

a.  2  
b.  1  
c.  2  
d.  1 
Passage
A Train is going on a long journey for 20 hours, starting at 3.00 hrs. The speed of the car at different hours is given below:
Time (in hrs):  3  5  8  10  12  15  18  20  23 
Speed (in km/hour):  60  70  90  50  60  75  60  30  60 
From the above table answer the following questions.
Question number: 691 (1 of 3 Based on Passage) Show Passage
Question
The percentage of increase in speed during 10.00 hrs and 12.00 hrs is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 692 (2 of 3 Based on Passage) Show Passage
Question
The percentage of decrease in speed during 18.00 hrs and 20.00 hrs is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 693 (3 of 3 Based on Passage) Show Passage
Question
The average speed (in km/hour) between 10.00 hrs, 12.00 hrs and 15.00 hrs is ________
Choices
Choice (4)  Response  

a.  68  
b.  62  
c.  63  
d.  57 
Question number: 694
» Analytical Reasoning and Logical Reasoning
Question
If means X is the wife of Y, means X is the son of Y and means X is the sister of Y, which of the following would mean that A is the daughter of B?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 695
Question
Mean marks scored by 40 students were found to be 60. Later it was observed that a score of 48 was misread as 84. Then the correct mean is ________
Choices
Choice (4)  Response  

a.  59  
b.  58  
c.  59.1  
d.  58.2 