KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Math: Questions 177  182 of 265
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Question number: 177
» Complex Numbers and Quadratic Equations » Relation Between Roots and Coefficients
Question
Let α be a root of the equation. The value of is equal to
Choices
Choice (4)  Response  

a.  –126 

b.  240 

c.  48 

d.  – 48 

Question number: 178
» Basic Mathematics » Arithmetic » Number Games
Question
The number of distinct primes dividing is –
Choices
Choice (4)  Response  

a.  7 

b.  6 

c.  8 

d.  9 

Question number: 179
» Basic Mathematics » Arithmetic » Solving Expressions
Question
If x, y are real number such that, then the value of is –
Choices
Choice (4)  Response  

a.  2 

b.  1 

c.  0 

d.  3 

Question number: 180
» Basic Mathematics » Arithmetic » Number Games
Question
Let n > 1 be an integer. Which of the following sets of numbers necessarily contains a multiple of 5?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 181
» Trigonometry » Heights and Distances
Question
The angle of elevation of the top of a building from the foot of tower is 30^{0} and the angle of elevation of the top of the tower from the foot of the building is 60^{0}. If the tower is 45m high, then the height of the building is –
Choices
Choice (4)  Response  

a.  15 

b.  12 

c.  20 

d.  10 

Question number: 182
» Basic Mathematics » Arithmetic » Rates
Question
Mahesh and Joseph are working on an assignment. Mahesh takes 8 hours to type 28 pages on a computer, while Joseph takes 4 hours to type 32 pages. How much time will they take, working together on two different computers to type an assignment 69 pages?
Choices
Choice (4)  Response  

a.  9 hr 

b.  9 hr 25 min 

c.  8 hr 30 min 

d.  10 hr 15 min 
