IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 751 - 757 of 1042

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Question 751

Question

MCQ▾

If divided by 13 leaves a remainder of 11, and divided by 17 leaves a remainder of 9, then the one՚s digit of N can be ________.

Choices

Choice (4)Response

a.

3

b.

4

c.

7

d.

9

Question 752

Question

MCQ▾

A tetrahedron has 4 Faces, 6 Edges then the number of vertices (using Euler՚s formula) is________.

Choices

Choice (4)Response

a.

4

b.

3

c.

2

d.

1

Question 753

Question

MCQ▾

The number of students watched TV for more than 7 hours is________.

Choices

Choice (4)Response

a.

6

b.

2

c.

5

d.

None of the above

Question 754

Question

MCQ▾

A 5-digit number xy 978 is divisible by 9 such that x + y < 5, where x and y are digits, then possible values of (x, y) are________.

Choices

Choice (4)Response

a.

(2,1) , (0,3) and (1,2)

b.

(1,2) , (0,3) and (2,1)

c.

(1,2) , (3,0) and (2,1)

d.

None of the above

Question 755

Question

MCQ▾

If is divided by 5 leaves a remainder of 1, then one՚s digit of must be________.

Choices

Choice (4)Response

a.

Either 1 or 2

b.

Either 1 or 6

c.

Either 4 or 5

d.

Question does not provide sufficient data or is vague

Question 756

Question

MCQ▾

21436587 is divisible by________.

Choices

Choice (4)Response

a.

9

b.

7

c.

2

d.

5

Question 757

Question

MCQ▾

68790 is divisible by________.

Choices

Choice (4)Response

a.

4

b.

3

c.

5

d.

Both b. and c. are correct