KVPY StreamSA (Class 11) Math: Questions 11  15 of 251
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Question number: 11
» Statistics and Probability » Probability of an Event
Appeared in Year: 2011
Question
There are 30 questions in a multiple –choice test. A student gets 1 mark for each unattempt question, 0 mark for each wrong answer and 4 marks for each correct answer. A student answered x question correctly and scored 60. Then the number of possible value of x is
Choices
Choice (4)  Response  

a.  6 

b.  5 

c.  15 

d.  10 

Question number: 12
» Statistics and Probability » Measures of Dispersion
Appeared in Year: 2011
Question
Consider an incomplete pyramid of balls on a square base having 18 layers; and having 13 balls on each side of the top layer. Then the total number N of balls in that pyramid satisfies
Choices
Choice (4)  Response  

a.  7000 < N < 8000 

b.  8000 < N < 9000 

c.  10000 < N < 12000 

d.  9000 < N < 10000 

Question number: 13
» Statistics and Probability » Measures of Dispersion
Question
Consider an incomplete pyramid of balls on a square base having 15 layers; and having 8 balls on each side of the top layer. Then the total number N of balls in that pyramid satisfies
Choices
Choice (4)  Response  

a.  3800 < N < 4000 

b.  3000 < N < 4000 

c.  6000 < N < 8000 

d.  10000 < N < 12000 

Question number: 14
» Coordinate Geometry » Distance Formula
Appeared in Year: 2011
Question
A frog is presently located at the origin (0, 0) in the XYplane. It always jumps from a point with integer coordinates to a point with integer coordinates moving a distance of 5 units in each jump. What is the minimum number of jumps required for the frog to go from (0, 0) to (0, 1)?
Choices
Choice (4)  Response  

a.  4 

b.  9 

c.  2 

d.  3 

Question number: 15
» Coordinate Geometry » Section Formula
Appeared in Year: 2011
Question
A piece of paper in the shape of a sector of a circle (see Fig. 1) is rolled up to form a rightcircular cone (see Fig. 2). The value of the angle is?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

