Mental Ability (NCO Cyber Olympiad (SOF) Class 9): Questions 132  135 of 219
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Question number: 132
» Mental Ability » Basic Algebra
Question
Arpna cut a cake in two equal parts and one of these two pieces is again cut into equal parts. Each small part is of 20 grams. If there are seven parts of the whole cake, what was the weight of the original cake?
Choices
Choice (4)  Response  

a.  280 grams 

b.  240 grams 

c.  120 grams 

d.  140 grams 

Question number: 133
» Mental Ability » Basic Arithmetic
Question
Ifis factor of , find the value of a.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 134
» Mental Ability » Basic Arithmetic
Question
The bacteria in a culture grows by 7 % in the first hour, decreases by 6 % in the second hour and again increases by 5 % in the third hour. If at the end of the third hour the count of bacteria is 11270000. The original count of bacteria in the sample is________
Choices
Choice (4)  Response  

a. 


b. 


c.  11270000 

d.  None of the above 

Question number: 135
» Mental Ability » Basic Statistics
Question
This question is based on the adjoining figure in which

Rectangle represents Males,

Circle represents the urban,

Square represents the educated and

Triangle represents the civil servants.
The number indicating the educated civil servants who are males but not urbans is
Choices
Choice (4)  Response  

a.  7 

b.  10 

c.  8 

d.  9 
