Basic MathematicsArithmetic (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Math): Questions 79  83 of 83
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Question number: 79
» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method
Appeared in Year: 2016
Question
There are two candles of same length and same size. Both of them burn at uniform rate. The first one burns in and the second one burns in . Both the candles are lit together. After how many minutes the length of first candle is times that of the other?
Choices
Choice (4)  Response  

a.  150 

b.  90 

c.  135 

d.  120 

Question number: 80
» Basic Mathematics » Arithmetic » Simplifying Expressions
Appeared in Year: 2016
Question
Consider the equation , where are real numbers. Then,
Choices
Choice (4)  Response  

a.  There are infinitely many solution pairs 

b.  There is no solution pair 

c.  There are exactly two solution pairs 

d.  There is exactly one solution pair 

Question number: 81
» Basic Mathematics » Arithmetic » Simplifying Expressions
Appeared in Year: 2016
Question
Let be real number such that for some positive integers and . Then for any choice of positive integers and , is never equal to –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 82
» Basic Mathematics » Arithmetic » Exponents, Roots and Logarithms
Appeared in Year: 2016
Question
The number of digits in decimal expansion of is,
Choices
Choice (4)  Response  

a.  18 

b.  16 

c.  19 

d.  17 

Question number: 83
» Basic Mathematics » Arithmetic » Number Games
Appeared in Year: 2016
Question
Let be non – zero real numbers such that
Then –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  The sign of or depends on the choice of 
