KVPY Stream-SA (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

MCQ▾

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

MCQ▾

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

MCQ▾

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

MCQ▾

Question

A frog is presently located at the origin (0, 0) in the XY-plane. 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

MCQ▾

Question

A piece of paper in the shape of a sector of a circle (see Fig. 1) is rolled up to form a right-circular cone (see Fig. 2). The value of the angle θ is?

A piece of paper in the shape of a sector of a circle

A Piece of Paper in the Shape of a Sector of a Circle

Figure 1 shows a piece of paper in the shape of a sector of a circle. Figure 2 shows a piece of paper in the shape of a sector of a circle is rolled up to form a right circular cone.

Choices

Choice (4) Response

a.

9π13

b.

5π13

c.

10π13

d.

6π13

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