Statistics and Probability (IMO Mathematics Olympiad (SOF) Class 9): Questions 49  55 of 101
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Passage
A car is going on a long journey for 16 hours, starting at 5.00 hrs. The speed of the car at different hours is given below:
Time (in hrs):  5  7  9  11  13  17  15  19  21 
Speed (in km/hour):  40  50  60  80  70  65  75  60  50 
From the above table answer the following questions.
Question number: 49 (3 of 3 Based on Passage) Show Passage
» Statistics and Probability
Question
The average speed (in km/hour) between 5.00 hrs, 7.00 hrs and 9.00 hrs is ________
Choices
Choice (4)  Response  

a.  52 

b.  60 

c.  55 

d.  65 

Question number: 50
» Statistics and Probability
Question
The median of the observation 30,91,0, 64,42,80,30,5, 117,71 is ________
Choices
Choice (4)  Response  

a.  53 

b.  51 

c.  52 

d.  52.5 

Question number: 51
» Statistics and Probability
Question
A die is thrown once. The probability of getting a number greater than 3 is ________
Choices
Choice (4)  Response  

a. 


b. 


c.  0 

d. 


Question number: 52
» Statistics and Probability
Question
The average of n numbers is A. if is replaced by is replaced by , …, then the new average is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 53
» Statistics and Probability
Question
The King, queen and jack of clubs are removed from a deck of 52 cards and then wellshuffled. One card id selected from the remaining cards. The probability of getting a black card is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 54
» Statistics and Probability
Question
Average weight of 9 persons is 48 kg. If one man weighing 32 kg, died, what is an average age of the remaining 8 persons.
Choices
Choice (4)  Response  

a.  50 

b.  52 

c.  54 

d.  56 

Question number: 55
» Statistics and Probability
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. 

