IMO Mathematics Olympiad Class 9: Questions 487  492 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 
