IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 480  485 of 968
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Question number: 480
» Triangle, Circle & Constructions
Question
In equilateral PD is altitude. Then equals ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 481
Question
The average temperatures of Monday, Tuesday, Wednesday and Thursday was . The average temperature of Tuesday, Wednesday, Thursday and Friday was . If the temperature on Monday was , then the temperature on Friday was ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 482
Question
Two dice are thrown simultaneously. The probability of getting a doublet or a total of 4 is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 483
Question
The king, queen and jack of Spades are removed from a deck of 52 playing cards and then wellshuffled. One card is selected from the remaining cards. The probability of getting a Spades is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 484
Question
The average of 15 results is 50. If the average of the first six results is 82 and that of the last six is 62, then the sixth result is ________
Choices
Choice (4)  Response  

a.  57  
b.  60  
c.  58  
d.  59 
Question number: 485
Question
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then wellshuffled. One card is selected from the remaining cards. The probability of getting a ‘8’ of black color is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
