IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 218  224 of 1022
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Question number: 218
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.  74 

b.  56 

c.  19 

d.  52 

Question number: 219
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.  10 

b.  19 

c.  16 

d.  14 

Question number: 220
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: 221
Question
, then find the value of X.
Choices
Choice (4)  Response  

a.  8 

b. 


c.  1 

d. 


Question number: 222
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: 223
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.  78 

d.  36 

Question number: 224
Question
The average of andis. The value of Y is ________
Choices
Choice (4)  Response  

a.  15 

b.  21 

c.  23 

d.  20 
