IMO Mathematics Olympiad Class 9: Questions 487  493 of 919
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Question number: 487
Question
P and Q can do a piece of work in 10 days and P alone can do it in 20 days. The time taken by Q alone to do the work is ________
Choices
Choice (4)  Response  

a.  19 days  
b.  20 days  
c.  10 days  
d.  22 days 
Question number: 488
Question
If a number x is chosen at random from the numbers 1, 2, 3 and the number y is selected from 1, 4, 9, and then is________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 489
Question
A sum was put a simple interest at a certain rate for 3 years. Had it been put at higher rate, it would have fetched Rs. 80 more. The sum is________
Choices
Choice (4)  Response  

a.  Rs. 750  
b.  Rs. 820  
c.  Rs. 700  
d.  Rs. 940 
Question number: 490
» Analytical Reasoning and Logical Reasoning
Question
Choose the odd numeral pair/group
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 491
» Analytical Reasoning and Logical Reasoning
Question
Which of the following words will come 2^{nd} in the dictionary?
Choices
Choice (4)  Response  

a.  Name  
b.  Came  
c.  Fame  
d.  Shame 
Question number: 492
Question
A contractor employed 18 labourers at Rs. 12 each per day, 10 labourers at Rs. 13.50 each per day, 5 labourers at Rs. 25 each per day and 2 labourers at Rs. 42 each per day. The average wages paid is ________
Choices
Choice (4)  Response  

a.  Rs. 28  
b.  Rs. 24  
c.  Rs. 20  
d.  Rs. 16 
Question number: 493
Question
A 200 metres long train crosses a man walking at the speed of 9 km/hr in the opposite direction in 9 seconds. The speed of the train in km/hr is ________
Choices
Choice (4)  Response  

a.  66.52  
b.  78.56  
c.  96.54  
d.  75.84 