Simple Equations (IMO Mathematics Olympiad Class 7): Questions 56  61 of 83
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Question number: 56
» Simple Equations
Question
The number of girls in a class is 3 times the number of boys. Which of the following cannot be the total number of children in the class?
Choices
Choice (4)  Response  

a.  16 

b.  64 

c.  32 

d.  18 

Question number: 57
» Simple Equations
Question
The total cost of three prizes is Rs. 4440. If the value of second prize is of the first and the value of third prize is of the second prize, then the value of first prize is ________.
Choices
Choice (4)  Response  

a.  Rs. 1200 

b.  Rs. 1800 

c.  Rs. 1500 

d.  Rs. 1050 

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. 

