# Statistics and Probability (IMO- Mathematics Olympiad (SOF) Class 9): Questions 49 - 55 of 101

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## Passage

A car is going on a long journey for 16 hours, starting at 5.00 hrs. The speed of the car at different hours is given below:

 Time (in hrs): 5 7 9 11 13 17 15 19 21 Speed (in km/hour): 40 50 60 80 70 65 75 60 50

From the above table answer the following questions.

## Question number: 49 (3 of 3 Based on Passage) Show Passage

» Statistics and Probability

MCQ▾

### Question

The average speed (in km/hour) between 5.00 hrs, 7.00 hrs and 9.00 hrs is ________

### Choices

Choice (4) Response

a.

52

b.

60

c.

55

d.

65

## Question number: 50

» Statistics and Probability

MCQ▾

### Question

The median of the observation 30,91,0, 64,42,80,30,5, 117,71 is ________

### Choices

Choice (4) Response

a.

53

b.

51

c.

52

d.

52.5

## Question number: 51

» Statistics and Probability

MCQ▾

### Question

A die is thrown once. The probability of getting a number greater than 3 is ________

### Choices

Choice (4) Response

a.

b.

c.

0

d.

## Question number: 52

» Statistics and Probability

MCQ▾

### Question

The average of n numbers is A. if is replaced by is replaced by , …, then the new average is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 53

» Statistics and Probability

MCQ▾

### Question

The King, queen and jack of clubs are removed from a deck of 52 cards and then well-shuffled. One card id selected from the remaining cards. The probability of getting a black card is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 54

» Statistics and Probability

MCQ▾

### Question

Average weight of 9 persons is 48 kg. If one man weighing 32 kg, died, what is an average age of the remaining 8 persons.

### Choices

Choice (4) Response

a.

50

b.

52

c.

54

d.

56

## Question number: 55

» Statistics and Probability

MCQ▾

### Question

A card is drawn at random from a well shuffled pack of 52 cards. The probability that the ‘9’ of red color card is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page