Mathematics (NTSE Stage2 (NationalLevel) ScholasticAptitude & Language Comprehension): Questions 10  15 of 112
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Question number: 10
» Mathematics » Linear Equation
Question
There are several human beings and several dogs in a room. One tenth of the humans have lost a leg. The total numbers of feet are 77. Then the number of dogs is
Choices
Choice (4)  Response  

a.  Not determinable due to insufficient data 

b.  4 

c.  5 

d.  6 

Question number: 11
» Mathematics » Mensuration
Question
A solid metal sphere of surface area S _{1} is melted and recast into a number of smaller spheres. S _{2} is the sum of the surface areas of all the smaller spheres. Then
Choices
Choice (4)  Response  

a.  S _{1} = S _{2} only if all the smaller spheres of equal radii 

b.  S _{2} > S _{1} 

c.  S _{1} > S _{2} 

d.  S _{1} S _{2} 

Question number: 12
» Mathematics » Statistics
Question
Median of a data set is a number which has an equal number of observations below and above it. The median of the data 1, 9, 4, 3, 7, 6, 8, 8, 12, 15 is
Choices
Choice (4)  Response  

a.  7.5 

b.  8 

c.  7 

d.  any number between 7 and 8 

Question number: 13
» Mathematics » Linear Equation
Question
Rs. l and Rs. 5 coins are available (as many required). Find the smallest payments which cannot be made by these coins, if not more than 5 coins are allowed
Choices
Choice (4)  Response  

a.  14 

b.  18 

c.  3 

d.  12 

Question number: 14
» Mathematics » Basic Geometry
Question
Which of the following polygons are uniquely determined when all the sides are given?
Choices
Choice (4)  Response  

a.  Quadrilateral 

b.  Pentagon 

c.  Triangle 

d.  Hexagon 

Question number: 15
» Mathematics » Basic Geometry
Question
Suppose you walk from home to the bus stand at 4 km/h and immediately return at x km/h. If the average speed is 6 km/h then x is
Choices
Choice (4)  Response  

a.  12 km/h 

b.  8 km/h 

c.  Cannot be determined unless the distance from home to bus stand is known. 

d.  10 km/h 
