Simple Equations (IMO Mathematics Olympiad Class 7): Questions 58  64 of 83
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Question number: 58
» Simple Equations
Question
A number is multiplied by 6. If 24 is subtracted from the product and difference is divided by 42, the result is equal to 10. The number is ________.
Choices
Choice (4)  Response  

a.  19  
b.  52  
c.  74  
d.  56 
Question number: 59
» Simple Equations
Question
5 is added to a number and the sum is multiplied by 5. If 25 is subtracted from the product and difference is divided by 8, the result is equal to 10. The number is ________.
Choices
Choice (4)  Response  

a.  19  
b.  16  
c.  10  
d.  14 
Question number: 60
» Simple Equations
Question
Savan is n years older than his sister is. His sister’s age is 19. What is their total age before 2 years?
Choices
Choice (4)  Response  

a.  years  
b.  years  
c.  years  
d.  years 
Question number: 61
» Simple Equations
Question
, then find the value of X.
Choices
Choice (4)  Response  

a.  1  
b. 
 
c.  8  
d. 

Question number: 62
» Simple Equations
Question
The number of girls in a class is 4 times the number of boys. Which of the following cannot be the total number of children in the class?
Choices
Choice (4)  Response  

a.  25  
b.  17  
c.  35  
d.  105 
Question number: 63
» Simple Equations
Question
Onethird of Rajani’s marks in Mathematics exceeds a half of his marks in English by 30. If he got 120 marks in the two subjects together, how many marks did he get in English?
Choices
Choice (4)  Response  

a.  42  
b.  84  
c.  36  
d.  78 
Question number: 64
» Simple Equations
Question
The average of and is . The value of Y is ________
Choices
Choice (4)  Response  

a.  21  
b.  23  
c.  15  
d.  20 