IMO Level 1 Mathematics Olympiad (SOF) Class 7: Questions 890  897 of 1022
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Question number: 890
Question
The mean of 5 numbers is 20. If one number is excluded, mean of the remaining numbers becomes 23, and then the excluded number is ________.
Choices
Choice (4)  Response  

a.  100 

b.  4 

c.  8 

d.  92 

Passage
Read the following graph of animals in a Jungle and answer the questions given below:
Question number: 891 (1 of 3 Based on Passage) Show Passage
Question
Which animals are more in the Jungle?
Choices
Choice (4)  Response  

a.  Zebra 

b.  Rabbit 

c.  Elephants 

d.  Lion 

Question number: 892 (2 of 3 Based on Passage) Show Passage
Question
What is the percentage of total number of Tiger and Lion in the Jungle?
Choices
Choice (4)  Response  

a.  25.58% 

b.  55% 

c.  28.65% 

d.  20.45% 

Question number: 893 (3 of 3 Based on Passage) Show Passage
Question
What is the average number of animals in the Jungle?
Choices
Choice (4)  Response  

a.  45 

b.  47 

c.  60 

d.  43 

Question number: 894
» Symmetry and Visualizing Solid Shapes
Question
Which letter of the English alphabet has reflection symmetry about both horizontal and vertical mirrors?
Choices
Choice (4)  Response  

a.  Q 

b.  I 

c.  M 

d.  P 

Question number: 895
Question
If , then the value of equals ________.
Choices
Choice (4)  Response  

a. 


b.  2 

c. 


d.  1 

Question number: 896
» Logical and Analytical Reasoning
Question
Mary wrote a sequence using the following steps:
She chose (10) as the first term.
Each term after the first was 4 less than the immediately preceding term.
What are the first five terms in Mary’s sequence?
Choices
Choice (4)  Response  

a.  10, 14, 18, 22, 26 

b.  10, 6, 2,2, 6 

c.  10, 14, 18, 20, 24 

d.  10, 6, 2,0, 4 

Question number: 897
» Logical and Analytical Reasoning
Question
If 4^{th} Jan 2008 falls on Friday, what day of week will fall on 4^{th} Jan 2009?
Choices
Choice (4)  Response  

a.  Sunday 

b.  Wednesday 

c.  Friday 

d.  Monday 
