Basic Mathematics (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Math): Questions 86  90 of 164
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Question number: 86
» Basic Mathematics » Arithmetic » Ratio and Proportion
Question
In a cinema hall, the charge per person is Rs. 400. On the first day, only 50 % of the seats were filled. The owner decided to reduce the price by 12 % and there was an increase of 36 % in the number of spectators on the next day. The percentage increase in the revenue on the second day was –
Choices
Choice (4)  Response  

a.  17.36 

b.  19.68 

c.  18.17 

d.  20.20 

Question number: 87
» Basic Mathematics » Arithmetic » Number Games
Question
Suppose a_{2}, a_{3}, a_{4}, a_{5}, a_{6} are integers such that
Where for j = 2, 3, 4, 5, 6. The sum is,
Choices
Choice (4)  Response  

a.  9 

b.  8 

c.  10 

d.  11 

Question number: 88
» Basic Mathematics » Algebra » Solving Equations
Question
Roots of equation:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 89
» Basic Mathematics » Algebra » Solving Equations
Question
Let a, b, c, d be real numbers such that, and . Then the set of all possible values of is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 90
» Basic Mathematics » Geometry » Polygons With More Than 4 Sides
Question
A triangular corner is cut from a rectangular piece of board and the resulting pentagon has sides 5, 6, 12, 15, in some order. The area of the rectangle is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  148.5 
