IMO- Mathematics Olympiad Class 9: Questions 688 - 694 of 919

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Question number: 688

» 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: 689

» Polynomials

MCQ▾

Question

Given that Equation is a solution of Equation . The other solutions are ________.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 690

» 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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 691

» Polynomials

MCQ▾

Question

Equation =

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 692

» Polynomials

MCQ▾

Question

If Equation and Equation , then value of y when Equation , is________.

Choices

Choice (4) Response

a.

-2

b.

2

c.

-1

d.

1

Passage

A Train is going on a long journey for 20 hours, starting at 3.00 hrs. The speed of the car at different hours is given below:

Train with its speed values is given

Calculate the values as asked in question

Time (in hrs):

3

5

8

10

12

15

18

20

23

Speed (in km/hour):

60

70

90

50

60

75

60

30

60

From the above table answer the following questions.

Question number: 693 (1 of 3 Based on Passage) Show Passage

» Statistics and Probability

MCQ▾

Question

The percentage of increase in speed during 10.00 hrs and 12.00 hrs is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 694 (2 of 3 Based on Passage) Show Passage

» Statistics and Probability

MCQ▾

Question

The average speed (in km/hour) between 10.00 hrs, 12.00 hrs and 15.00 hrs is ________

Choices

Choice (4) Response

a.

62

b.

63

c.

68

d.

57

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