IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 421  427 of 968
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Question number: 421
Question
If the centroid of the triangle formed by the points is at the origin, then
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Choice (4)  Response  

a. 
 
b.  0  
c. 
 
d. 

Question number: 422
Question
Find the area of the triangle whose vertices are and
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c. 
 
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Question number: 423
Question
A card is drawn from a wellshuffled pack of 52 cards. The probability that the card neither a black card nor a king is ________
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a. 
 
b. 
 
c. 
 
d. 

Question number: 424
Question
A bag contains 6 blue and 4 green marbles. If a marble is drawn at random from the bag, the probability that the marble drawn is green, is ________
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a. 
 
b. 
 
c. 
 
d. 

Question number: 425
Question
In a , coordinates of J are and the equations of the medians through K and L is and respectively, so the coordinates of K and L are ________
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a. 
 
b. 
 
c. 
 
d. 

Question number: 426
Question
The coordinates of the third vertex of an equilateral triangle whose two vertices are at are ________
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a. 
 
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c. 
 
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Question number: 427
Question
The coordinates of the midpoints of the sides of a triangle are . What will be the coordinates of the centroid of the triangle?
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Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
