IMO Mathematics Olympiad (SOF) Class 9: Questions 703  709 of 919
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Question number: 703
Question
The mean of 20 items is 17 and if each item is increased by 3, then its mean will be ________
Choices
Choice (4)  Response  

a.  70 

b.  50 

c.  60 

d.  20 

Question number: 704
» Analytical Reasoning and Logical Reasoning
Question
If in each of the following groups of numbers, last two digits are interchanged and after that they are arranged in descending order, then what will be the first digit of the middle group?
487, 984, 124, 564, 784, 325 and 956
Choices
Choice (4)  Response  

a.  5 

b.  7 

c.  9 

d.  4 

Question number: 705
Question
Find the value of a if is a factor of the polynomial
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 706
» Introduction to Euclid's Geometry
Question
Train left 30 minutes later than the scheduled time and inorder to reach the destination, 1500 km away in time. It has to increase the speed by 250km/h from the usual seed. Find the usual speed?
Choices
Choice (4)  Response  

a.  850 

b.  650 

c.  950 

d.  750 

Question number: 707
Question
The difference between the maximum and the minimum observation in the data is called ________
Choices
Choice (4)  Response  

a.  Frequency 

b.  Class interval 

c.  Range 

d.  Cumulative frequency 

Question number: 708
Question
A card is drawn from a wellshuffled pack of 52 cards. The probability that the card drawn neither a club nor a spade is ________
Choices
Choice (4)  Response  

a. 


b.  2 

c.  3 

d. 


Question number: 709
Question
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

