# IMO- Mathematics Olympiad Class 8: Questions 562 - 569 of 1029

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## Question number: 562

MCQ▾

### Question

If 6 men take two hour to dig a ditch, how long should it take 16 men to dig a ditch of the same type?

### Choices

Choice (4) Response

a.

53 min

b.

35 min

c.

20 min

d.

45 min

## Question number: 563

MCQ▾

### Question

If, then the value of a is

### Choices

Choice (4) Response

a.

1

b.

2

c.

4

d.

3

## Question number: 564

MCQ▾

### Question

The ratio which bears to is________.

### Choices

Choice (4) Response

a.

1.78

b.

1.64

c.

1.50

d.

1.68

## Question number: 565

MCQ▾

### Question

The value of , is________.

### Choices

Choice (4) Response

a.

3

b.

5

c.

4

d.

7

## Question number: 566

MCQ▾

### Question

A man completes of a job in 15 days. At this rate how many more days will it take him to finish the job?

### Choices

Choice (4) Response

a.

27

b.

22

c.

22.5

d.

25

## Question number: 567

MCQ▾

### Question

can do a piece of work in 10 days and can do alone it in 12 days. B works at it for 5 days and then leaves. alone can finish the remaining work in________.

### Choices

Choice (4) Response

a.

5.8 days

b.

7.5 days

c.

6 days

d.

6.5 days

## Question number: 568

MCQ▾

### Question

If, then the value of a is

### Choices

Choice (4) Response

a.

3

b.

1

c.

2

d.

4

## Question number: 569

MCQ▾

### Question

1.20 of a number equals 0.36 of another number. The ratio of the number is________.

### Choices

Choice (4) Response

a.

10: 3

b.

3: 10

c.

3: 2

d.

2: 3

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