IMO Level 2 Mathematics Olympiad (SOF) Class 4: Questions 45  49 of 105
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Question number: 45
Appeared in Year: 2017
Question
Nayna had some marbles in her store. She sold marbles in March and 1545 marbles in April. After she bought marbles in May, she had marbles altogether. How many marbles did she have at first?
Choices
Choice (4)  Response  

a. 


b.  6106 

c.  4031 

d. 


Question number: 46
Appeared in Year: 2018
Question
Fill in the blanks.
4 groups of 6 is P more than 5 groups of 4.
6 groups of 3 is Q more than 7 groups of 2.
8 groups of 7 is R less than 8 groups of 8.
9 groups of 4 is S less than 6 groups of 7.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 47
Appeared in Year: 2018
Question
How many tens must be subtracted from 29674 to get 3914?
Choices
Choice (4)  Response  

a.  2500 

b. 


c.  2745 

d.  25000 

Question number: 48
Appeared in Year: 2018
Question
A software engineer has the capability of thinking 100 lines of code in five minutes and can type 100 lines of code in 10 minutes. He takes a break for five minutes after every ten minutes. How many lines of codes will he complete typing after an hour?
Choices
Choice (4)  Response  

a. 


b.  150 

c. 


d.  250 

Question number: 49
Appeared in Year: 2018
Question
How many letters in the given word have one line of symmetry?
Choices
Choice (4)  Response  

a.  5 

b.  3 

c.  2 

d.  4 
