KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Math: Questions 10 - 14 of 265

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Question number: 10

» Basic Mathematics » Arithmetic » Rates

Appeared in Year: 2011

MCQ▾

Question

Three taps A, B, C fill up a tank independently in 10 hr, 20 hr, 30 hr respectively. Initially the tank is empty and exactly one pair of taps is open during each hour and every pair of taps is open at least for one hour. What is the minimum number of hours required to fill the tank?

Choices

Choice (4) Response

a.

9

b.

11

c.

8

d.

10

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

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