IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 398  406 of 1012
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1012 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
How to register?
Question number: 398
Question
The value of x in is ________.
Choices
Choice (4)  Response  

a. 


b. 


c.  1 

d.  3 

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

a. 


b. 


c.  2y 

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.  16 

b.  30 

c.  20 

d.  32 

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.  ab 

b.  0 

c. 


d.  ac 

Question number: 406
Question
When a number is reduced by 12, it becomes 20 % of itself. Find the number.
Choices
Choice (4)  Response  

a.  15 

b.  30 

c.  12 

d.  25 
