IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 395  405 of 1022
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Question number: 395
Question
If , then x =
Choices
Choice (4)  Response  

a.  6  
b.  9  
c.  0  
d.  15 
Question number: 396
Question
An expression is taken away from to obtain , then the expression is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 397
Question
The value of , if is ________.
Choices
Choice (4)  Response  

a.  1850  
b.  1844  
c.  1825  
d.  1840 
Question number: 398
Question
The value of x in is ________.
Choices
Choice (4)  Response  

a.  3  
b. 
 
c.  1  
d. 

Question number: 399
Question
The algebraic expression obtained on addition of following algebraic expression is ________.
Choices
Choice (4)  Response  

a.  2y  
b. 
 
c. 
 
d.  0 
Question number: 400
Question
The value of 25 coins of 20 p and 50 p is Rs. 9.80. The number of 50 p coins is ________.
Choices
Choice (4)  Response  

a.  30  
b.  32  
c.  16  
d.  20 
Question number: 401
Question
The value of is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 402
Question
Express 0.0084 in scientific notation.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 403
Question
The number which is multiplied by to obtain a product equal to is ________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 404
Question
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 405
Question
What is the value of at ?
Choices
Choice (4)  Response  

a.  0  
b.  ac  
c.  ab  
d. 
