IMO Mathematics Olympiad (SOF) Class 9: Questions 891  898 of 918
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Question number: 891
Question
Value of when , is ________
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  2 

d.  0 

Question number: 892
» Linear Equations in Two Variables
Question
Equation of the yaxis, is
Choices
Choice (4)  Response  

a.  y=x 

b.  y = x 

c.  x = 0 

d.  y = 0 

Passage
A Bus is going on a long journey for 25 hours, starting at 6.00 hrs. The speed of the car at different hours is given below:
Time (in hrs):  6  8  9  13  14  18  20  22  25 
Speed (in km/hour):  30  60  50  40  60  70  80  60  20 
From the above table answer the following questions.
Question number: 893 (1 of 3 Based on Passage) Show Passage
Question
The average speed (in km/hour) between 6.00 hrs, 8.00 hrs, 9.00 hrs and 13.00 hrs is ________
Choices
Choice (4)  Response  

a.  45 

b.  67 

c.  48 

d.  96 

Question number: 894 (2 of 3 Based on Passage) Show Passage
Question
The percentage of increase in speed during 14.00 hrs and 18.00 hrs is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 895 (3 of 3 Based on Passage) Show Passage
Question
The percentage of decrease in speed during 22.00 hrs and 25.00 hrs is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 896
Question
A man sells two horses for Rs. 4000 each, neither losing nor gaining in the deal. If he sold one horse at a gain of , the other horse is sold at a loss of ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 897
» Analytical Reasoning and Logical Reasoning
Question
In a certain code, 26890 is written KARYD and 2476 is written as KBNA. How is 27498 written in the code?
Choices
Choice (4)  Response  

a.  XTZAL 

b.  NPTSL 

c.  KNBYR 

d.  NBYRK 

Question number: 898
Question
then find the value of
Choices
Choice (4)  Response  

a.  1 

b.  3 

c.  2 

d.  4 
