IMO Mathematics Olympiad (SOF) Class 10: Questions 385  391 of 958
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Question number: 385
» Triangle, Circle & Constructions
Question
In the given figure And , then ________
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Choice (4)  Response  

a. 


b. 


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d. 


Question number: 386
Question
The mean of is ________
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a. 


b. 


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d. 


Question number: 387
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is three vertices of the parallelogram ABCD. The coordinates of fourth vertex is ________
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Question number: 388
Question
If occur with frequencies respectively, then the arithmetic mean is ________
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Choice (4)  Response  

a.  4.4 

b.  5.5 

c.  3.5 

d.  6.5 

Question number: 389
Question
The coordinates of the centre of a circle passing through is ________
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Question number: 390
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Orthocenter of the triangle formed by the lines and is ________
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Question number: 391
Question
A bag contains 6 Red, 9 Blue and 5 Black marbles. If a marble is drawn at random from the bag, the probability that the marble drawn is red or Blue, is ________
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Choice (4)  Response  

a. 


b. 


c. 


d. 

