NSO Level 1 Science Olympiad (SOF) Class 10: Questions 21  28 of 986
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Question number: 21
Question
In a lottery, there are 9 prizes and 18 blanks. What is the probability of getting a prize?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 22
Question
The difference between the exterior angles of two regular polygon having sides equal to and is 18. Find the value of.
Choices
Choice (4)  Response  

a.  5 

b.  4 

c.  6 

d.  8 

Passage
DIRECTION: The following questions are based on the diagram given below.
I. Square represents female.
II. Triangle represents doctor.
III. Square represents African.
IV. Circle represents uneducated.
Question number: 23 (1 of 3 Based on Passage) Show Passage
Question
Who among the following is female doctor but not an African?
Choices
Choice (4)  Response  

a.  5 

b.  10 

c.  8 

d.  4 

Question number: 24 (2 of 3 Based on Passage) Show Passage
Question
Who among the following is an African but not uneducated, female and doctor?
Choices
Choice (4)  Response  

a.  15 

b.  9 

c.  10 

d.  19 

Question number: 25 (3 of 3 Based on Passage) Show Passage
Question
Who among the following is uneducated female but not an African?
Choices
Choice (4)  Response  

a.  13 

b.  11 

c.  12 

d.  15 

Question number: 26
Question
Choices
Choice (4)  Response  

a.  991 

b.  338 

c.  114 

d.  558 

Question number: 27
» Chemical Reactions and Equation
Question
Which of the following is not a single displacement reaction?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 28
Question
Which figure is the rearrangement of the pair of the given figure?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
