IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 720 - 727 of 1042

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Question 720

Question

MCQ▾

A die is thrown. The probability that the number comes up odd is________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 721

Question

MCQ▾

Three unbiased coins are tossed. What is the probability of getting at most two heads?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 722

Question

MCQ▾

The number which is divisible by 5 is________.

Choices

Choice (4)Response

a.

21300

b.

12345

c.

24675

d.

All a., b. and c. are correct

Question 723

Question

MCQ▾

lies on________.

Choices

Choice (4)Response

a.

Negative y axis

b.

Negative x axis

c.

Positive x axis

d.

Positive y axis

Question 724

Question

MCQ▾

The number which is exactly divisible by 99 is________.

Choices

Choice (4)Response

a.

25176

b.

33210

c.

8217

d.

All of the above

Question 725

Question

MCQ▾

Find the least value of x for which is divisible by 9.

Choices

Choice (4)Response

a.

4

b.

2

c.

5

d.

3

Question 726

Question

MCQ▾

When a certain number is multiplied by 13, the product consists entirely of fives. The smallest such number is________.

Choices

Choice (4)Response

a.

4271

b.

4256

c.

4273

d.

4275

Question 727

Question

MCQ▾

If is divided by 5 leaves a remainder of 4, then one՚s digit of must be________.

Choices

Choice (4)Response

a.

Either 5 or 4

b.

Either 1 or 4

c.

Either 9 or 4

d.

Question does not provide sufficient data or is vague