IMO Level 1 Mathematics Olympiad (SOF) Class 4: Questions 137  142 of 614
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Question number: 137
Question
Smallest factor of a number is ________.
Choices
Choice (4)  Response  

a.  10  
b.  0  
c.  1  
d.  Number it self 
Question number: 138
Question
The table below shows the number of balls Alisha has in each of five jars.
Jar  Number of balls 
A  145 
B  138 
C  83 
D  104 
E  216 
Which number is closest to the total number of balls in the five jars?
Choices
Choice (4)  Response  

a.  685  
b.  590  
c.  580  
d.  680 
Question number: 139
Question
Chirag bought 4 bags of white balls and 3 bags of black balls. Each bag of balls had 9 pieces in it. Which expression could he use to find the total number of balls he bought?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 140
Question
Choices
Choice (4)  Response  

a.  Rs. 680  
b.  Rs. 420  
c.  Rs. 1440  
d.  Rs. 1220 
Question number: 141
Question
The numbers in region (ii) shows that the number can be divided by ________ both.
Choices
Choice (4)  Response  

a.  7 and 2  
b.  4 and 6  
c.  3 and 5  
d.  All of the above 
Question number: 142
Question
The table below shows the number of marbles Arjun has in each of four jars.
Jar  Number 
A  111 
B  65 
C  105 
D  214 
Which number is closest to the total number of marbles in the four jars?
Choices
Choice (4)  Response  

a.  490  
b.  680  
c.  510  
d.  160 