IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 450  458 of 1022
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Question number: 450
Question
Which of the following numbers is in the scientific notation?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 451
Question
By what number should be divided so that the quotient is ?
Choices
Choice (4)  Response  

a.  4 

b. 


c. 


d.  3 

Question number: 452
Question
If , then x =
Choices
Choice (4)  Response  

a.  10 

b.  11 

c.  13 

d.  12 

Question number: 453
Question
Choices
Choice (4)  Response  

a. 


b. 


c.  1 

d.  2 

Question number: 454
Question
The value of is ________.
Choices
Choice (4)  Response  

a.  5 

b.  25 

c. 


d.  125 

Question number: 455
Question
The value is ________.
Choices
Choice (4)  Response  

a.  1 

b.  0 

c.  2 

d.   1 

Question number: 456
Question
The value is ________.
Choices
Choice (4)  Response  

a.  1 

b. 


c.   2 

d. 


Question number: 457
Question
Monika answered of the questions on her quiz correctly. What percent of the questions did she answer correctly?
Choices
Choice (4)  Response  

a.  25% 

b.  50% 

c.  75% 

d.  34% 

Question number: 458
Question
Komal has certain amount in his account. She gives threefifth of this to her brother and one half of the remaining to her sister. The amount left with her now is ________.
Choices
Choice (4)  Response  

a.  of the original 

b.  of the original 

c.  of the original 

d.  of the original 
