IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 619 - 624 of 930

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Question 619

Question MCQ▾

Two dice are thrown simultaneously. The probability of getting a multiple of 2 on one die and a multiple of 3 on the other is ________

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 620

Question MCQ▾

The age of Sandhya՚s father is 5 times of his age. If 6 years ago, father՚s age was 8 times of the age of his son at that time. What is Sandhya՚s father present age?

Choices

Choice (4)Response

a.

56 years

b.

70 years

c.

75 years

d.

41 years

Edit

Question 621

Question MCQ▾

Give the equations of two lines passing through . How many more such lines are there?

Choices

Choice (4)Response

a.

Infinitely many

b.

Exactly Two

c.

Only one

d.

Exactly three

Edit

Question 622

Question MCQ▾

The following observations have been arranged in the ascending order. If the median of the data 13, 26,32, 37, x + 2, x + 4, 62, 68,74, 85 is 43, then the value of x is ________

Choices

Choice (4)Response

a.

40

b.

42

c.

44

d.

46

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Question 623

Question MCQ▾

The probability of guessing the correct answer to a certain test question is . If the probability of not guessing the correct answer to this question is , then x = ________

Choices

Choice (4)Response

a.

2

b.

c.

3

d.

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Question 624

Question MCQ▾

Ten people are planning to share equally the cost of a rental bike. If one person withdraws from the arrangement and the others share equally the entire rental of the bike, then the share of each of the remaining persons is increased by ________ of the original share.

Choices

Choice (4)Response

a.

b.

7

c.

d.

Edit