KVPY StreamSA (Class 11) Math: Questions 192  197 of 265
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Question number: 192
» Permutations and Combinations » Simple Applications
Question
If ^{n }C _{r1} = 8, ^{n }C _{r} = 28, and ^{n }C _{r + 1} = 56; than value of n and r respectively –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 193
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Question
12 women can complete a work in 5 days and 12 children take 10 days to complete a work. How many days will 3 women and 6 children take to complete the work?
Choices
Choice (4)  Response  

a.  12 

b.  8 

c.  9 

d.  10 

Question number: 194
» Complex Numbers and Quadratic Equations » Relation Between Roots and Coefficients
Question
If the roots of the equation are equal then,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 195
» Basic Mathematics » Arithmetic » Simplifying Expressions
Question
If α is the root of then other root β is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All a. , b. and c. are correct 

Question number: 196
» Trigonometry » Trigonometric Functions
Question
If and , then
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 197
» Complex Numbers and Quadratic Equations » Relation Between Roots and Coefficients
Question
If where α, β are the roots of the equation then the value of c is –
Choices
Choice (4)  Response  

a.  3 

b.  2 

c.  0 

d.  4 
