IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 366  374 of 1022
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Question number: 366
Question
The value of 36 coins of 10 p and 20 p is Rs. 6.60. The number of 20 p coins is ________.
Choices
Choice (4)  Response  

a.  16 

b.  20 

c.  30 

d.  32 

Question number: 367
Question
A man sold 15 pens for 24 rupees and gained 12%. How many pens did he buy for 24 rupees?
Choices
Choice (4)  Response  

a.  21 

b.  15 

c.  16 

d.  17 

Question number: 368
Question
is equal to ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 369
Question
When a number is reduced by 8, it becomes 60 % of itself. Find the number.
Choices
Choice (4)  Response  

a.  50 

b.  40 

c.  20 

d.  30 

Question number: 370
Question
Express 0.00102 in scientific notation.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 371
Question
Simplify .
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 372
Question
Choices
Choice (4)  Response  

a. 


b.   25 

c. 


d.  25 

Question number: 373
Question
The value of is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 374
Question
If , then the incorrect expression from the following is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

