# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 856 - 862 of 1059

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## Question 856

### Question

MCQ▾

The first and last terms if four different numbers are in proportion are called

### Choices

Choice (4)Response

a.

Means

b.

Extremes

c.

Antecedents

d.

Consequents

## Question 857

### Question

MCQ▾

In a , if , then respectively are

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 858

### Question

MCQ▾

Distance from flat A to flat B is 20 km and distance from flat B to flat C is 35000 m, then the ratio of distance from flat A to flat B and distance from flat B to flat C is

### Choices

Choice (4)Response

a.

3: 5

b.

4: 7

c.

5: 3

d.

7: 4

## Question 859

### Question

MCQ▾

Length and width of a rectangle field measures 60 m and 45 m. The distance covered by a man going around the field 3 times is

### Choices

Choice (4)Response

a.

460 m

b.

160 m

c.

690 m

d.

630 m

## Question 860

### Question

MCQ▾

The area of a square is numerically half of the perimeter of the square, then the side of square is

### Choices

Choice (4)Response

a.

3

b.

2

c.

4

d.

5

## Question 861

### Question

MCQ▾

In an exam, the ratio of marks of mathematics to marks of science is 7: 9. If marks of science is 90, then the marks of mathematics is

### Choices

Choice (4)Response

a.

70

b.

75

c.

71

d.

80

## Question 862

MCQ▾

A square has

### Choices

Choice (4)Response

a.

Three lines of symmetry

b.

Two lines of symmetry

c.

One line of symmetry

d.

Four lines of symmetry