Mathematics (NTSE Stage2 (NationalLevel) ScholasticAptitude & Language Comprehension): Questions 87  93 of 112
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Question number: 87
» Mathematics » Probability
Question
If an alphabet is selected from English alphabet, then probability of selecting a vowel is
Choices
Choice (4)  Response  

a.  16/26 

b.  5/26 

c.  5/21 

d.  21/26 

Question number: 88
» Mathematics » Quadratic Equations
Question
If a and b are the roots of the equation, then the value of ) is equal to
Choices
Choice (4)  Response  

a. 


b. 


c.  5 

d.  All of the above 

Question number: 89
» Mathematics » Percentage
Question
A shopkeeper purchased 300 pens and sold one out of four pens at no loss or profit. He sold the remaining pens at a profit of 20%. What is his overall profit or loss per cent on the whole transaction?
Choices
Choice (4)  Response  

a.  12 % profit 

b.  15 % loss 

c.  15 % profit 

d.  12 % loss 

Question number: 90
» Mathematics » Number Systems
Question
The sum of any three distinct natural numbers arranged in ascending order is 200 such that the second number is a perfect cube. How many possible values are there for this number?
Choices
Choice (4)  Response  

a.  4 

b.  2 

c.  3 

d.  1 

Question number: 91
» Mathematics » Basic Geometry
Question
ABCD is a quadrilateral whose diagonals intersect each other at the point O such that OA = OB = OD. If ∠OAB = 30°, then the measures of ∠ODA is
Choices
Choice (4)  Response  

a.  60° 

b.  90° 

c.  45° 

d.  30° 

Question number: 92
» Mathematics » Arithmetic
Question
The value of the expression is
Choices
Choice (4)  Response  

a.  3 

b.  2 

c.  2 

d.  4 

Question number: 93
» Mathematics » Number Systems
Question
If the digits of a threedigit number are reversed, then the number, so obtained is less than the original number by 297. If the sum of the digits of the number is 8 and its hundred’s digit has the largest possible value, then the ten’s digit of the number is
Choices
Choice (4)  Response  

a.  0 

b.  1 

c.  2 

d.  3 
