IMO Mathematics Olympiad Class 9: Questions 487  493 of 919
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
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 
