KVPY StreamSA (Class 11) Math: Questions 226  231 of 251
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Question number: 226
» Basic Mathematics » Geometry » Polygons With More Than 4 Sides
Question
12 sphere of same size are made from melting a solid cylinder of 16 cm diameter and 2 cm height. The diameter of each sphere is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 227
» Permutations and Combinations » Simple Applications
Question
If ^{n }C _{r1} = 165, ^{n }C _{r} = 330, and ^{n }C _{r + 1} = 462; than value of n and r respectively –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 228
» Sets, Relations and Functions » Functions and Composition
Question
How many positive real numbers x satisfy the equation,
Choices
Choice (4)  Response  

a.  2  
b.  1  
c.  4  
d.  6 
Question number: 229
» Trigonometry » Trigonometric Functions
Question
Simplification of is –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d.  None of the above 
Question number: 230
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
15 men can complete a work in 6 days and 15 children take 12 days to complete a work. How many days will 5 men and 10 children take to complete the work?
Choices
Choice (4)  Response  

a.  12  
b.  9  
c.  8  
d.  10 
Question number: 231
» Complex Numbers and Quadratic Equations » Formation of Quadratic Equations With Given Roots
Question
Let and , where p and q are positive integers. Suppose and . If the coefficient of the highest degree term of k (x) is 1, the sum of the roots of is –
Choices
Choice (4)  Response  

a.  22  
b.  9  
c.  10  
d.  27 