NCO Cyber Olympiad (SOF) Class 8: Questions 133  135 of 510
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Question number: 133
» Mental Ability » Number Games » Number Analogies
Question
What least number must be subtracted from 3970 to get a perfect square? Also, find the square root of the perfect square.
Choices
Choice (4)  Response  

a.  1,76  
b.  8,68  
c.  1,63  
d.  3,54 
Question number: 134
» Mental Ability » Basic Arithmetic
Question
A student requires 15 days to finish a project of 45 pages. How many days he will require to finish a project of 21 pages?
Choices
Choice (4)  Response  

a.  14  
b.  30  
c.  21  
d.  7 
Question number: 135
» Mental Ability » Basic Geometry
Question
Two chords AB and CD of a circle cut each other when produced outside the circle at P. If AD and BC are joined, and , find .
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 
