# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 686 - 693 of 1040

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## Question number: 686

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MCQ▾

### Question

If , where A and B are single digit number such that, then the values of A and B are________.

### Choices

Choice (4) Response

a.

4,5

b.

4,4

c.

5,5

d.

None of the above

## Question number: 687

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MCQ▾

### Question

If , where A and B are single digit number such that, then the values of B and A are________.

### Choices

Choice (4) Response

a.

4,5

b.

5,4

c.

6,9

d.

9,6

## Question number: 688

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MCQ▾

### Question

Euler’s formula for any polyhedron, where F is the number of faces, V stands for number of vertices and E stands for number of edges is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 689

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MCQ▾

### Question

The least value must be given to x so that the number 3128 × 4 is divisible by 8 is________.

### Choices

Choice (4) Response

a.

1

b.

3

c.

4

d.

2

## Question number: 690

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MCQ▾

### Question

To draw the graph of a line, the least number of points required is________.

### Choices

Choice (4) Response

a.

Two

b.

One

c.

Three

d.

Four

## Passage

Study the graph carefully and answer the questions given below it.

## Question number: 691 (1 of 13 Based on Passage) Show Passage

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MCQ▾

### Question

In which year did the import register lowest over its preceding year?

### Choices

Choice (4) Response

a.

1972

b.

1977

c.

1978

d.

1975

## Question number: 692 (2 of 13 Based on Passage) Show Passage

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MCQ▾

### Question

The import in 1972 is approximately what pecent of the average import for the given years?

### Choices

Choice (4) Response

a.

49.54%

b.

44%

c.

45.71%

d.

All of the above

## Question number: 693 (3 of 13 Based on Passage) Show Passage

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MCQ▾

### Question

The increase in import in 1973 was what percent of the import in 1972?

### Choices

Choice (4) Response

a.

21.00%

b.

33.24%

c.

25.35%

d.

20.30%