NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 862  869 of 1484
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Question number: 862
Question
In a single throw of two dice, the probability of getting a sum of 5 is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 863
Question
The A. M of 6,8, 16,22,3, 5 is
Choices
Choice (4)  Response  

a.  12 

b.  10 

c.  5 

d.  22 

Question number: 864
Question
The length of shadow of a tower is equal to its length. The angle of elevation of the sun is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 865
» Mathematics » Quadratic Equations
Question
If is a positive integer and the roots of the equation are rational numbers, then the smallest value of is:
Choices
Choice (4)  Response  

a.  8 

b.  3 

c.  4 

d.  10 

Question number: 866
Question
The value of = ________.
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  1 

d.  2 

Question number: 867
» Mathematics » Triangles
Question
In , D and E are midpoints of AB and AC then DE: BC = ________.
Choices
Choice (4)  Response  

a.  4: 1 

b.  1: 2 

c.  2: 1 

d.  1: 1 

Question number: 868
Question
The sum of all the deviations of the observations of a data from it’s A. M. is
Choices
Choice (4)  Response  

a.  Maximum 

b.  0 

c.  Negative number 

d.  Minimum 

Question number: 869
Question
If the classes of a distribution are 1  6,7  12,13  18, …. the upper boundary of class 1  6 is
Choices
Choice (4)  Response  

a.  6.5 

b.  7.5 

c.  6 

d.  5.5 
