NCO Cyber Olympiad (SOF) Class 10: Questions 176  182 of 461
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Question number: 176
» Mental Ability » Basic Geometry
Question
The radii of two spheres are in the ratio 1: 5. Find the ratio of their volumes.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 177
» Mental Ability » Basic Algebra
Question
The sum of the squares of two consecutive even integers is 340. Find the integers.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 178
» Mental Ability » Basic Arithmetic
Question
30 liters of a mixture contains 20 % alcohol and the rest water. If 6 liters of water be mixed in it, the percentage of alcohol in the new mixture will be
Choices
Choice (4)  Response  

a.  17% 

b. 


c. 


d.  15% 

Question number: 179
» Mental Ability » Number Games » Number Analogies
Question
If all the numbers from 25 to 80 which are divisible by 6 are arranged in descending order, then which number will be at 6^{th} and 2^{nd} places?
Choices
Choice (4)  Response  

a.  72,48 

b.  60,42 

c.  66,48 

d.  48,66 

Question number: 180
» Mental Ability » Basic Algebra
Question
The roots of are
Choices
Choice (4)  Response  

a.  1,1 and 5 

b.  1 

c.  0 and 1 

d.  1 and 5 

Question number: 181
» Mental Ability » Basic Geometry
Question
The angle of elevation of the top of a tower at a distance 680 meters from the base is . The height of the tower is
Choices
Choice (4)  Response  

a.  meters 

b.  meters 

c.  meters 

d.  meters 

Question number: 182
» Mental Ability » Basic Algebra
Question
x  2  1  0  3 
y  7  2  1  8 
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

