IMO Mathematics Olympiad (SOF) Class 3: Questions 19  23 of 581
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Question number: 19
Question
Which symbol should be written in the box below to make the given number sentence true?
Choices
Choice (4)  Response  

a.  > 

b. 


c.  = 

d.  < 

Question number: 20
Question
Which of the following number name belongs to the monkey’s number?
Choices
Choice (4)  Response  

a.  Seven hundred fifty three 

b.  Seven thousand eight hundred fifty three 

c.  Seven thousand eight fifty three 

d.  None of the above 

Question number: 21
Question
Mr. Sharma wrote a 2digit number on the blackboard. Three students Gopal,
Raju and Prashant said the following about that number.
Gopal: “It is a greatest 2digit number”.
Raju: “It is the predecessor of least 3digit number”.
Prashant: “It is having three different digits”.
What is the number, if only two of the three students said the truth?
Choices
Choice (4)  Response  

a.  99 

b.  100 

c.  123 

d.  10 

Question number: 22
Question
The greatest fourdigit number that can be formed using 7,0, 6,5 without repeating the digits is ________.
Choices
Choice (4)  Response  

a.  7650 

b.  7560 

c.  7065 

d.  6570 

Question number: 23
Question
Madhuri wrote a number on the black board as shown below.
If it is formed from three different digits, then which of the following number could be placed in the gap to make it the biggest number?
Choices
Choice (4)  Response  

a.  0 

b.  9 

c.  5 

d.  8 
