# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 749 - 754 of 1059

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## Question 749

### Question

MCQ▾

To get the value of ‘b’ , ________ to be multiplied on either side of equation .

### Choices

Choice (4)Response

a.

+ 19

b.

0

c.

- 3

d.

+ 3

## Question 750

### Question

MCQ▾

In a cricket coaching camp, 1200 children are trained out of which 900 are selected for various matches. Ratio of non-selected children to the total number of children is

### Choices

Choice (4)Response

a.

4: 1

b.

120: 300

c.

1: 4

d.

300: 120

## Question 751

### Question

MCQ▾

In , the value of ‘a’ is

### Choices

Choice (4)Response

a.

b.

+ 1

c.

d.

- 1

## Question 752

### Question

MCQ▾

The ratio of teacher՚s age to that his student՚s age is equal to the ratio of the principal՚s age to that of clerk՚s age. If the ages of teacher, student and clerk be 30,20 and 45 years respectively, then the age of the principal is

### Choices

Choice (4)Response

a.

65 years

b.

70 years

c.

69 years

d.

67.5 years

## Question 753

### Question

MCQ▾

The number of women in an office is 2 times the number of men. Which of the following cannot be the total number of employees in the class?

### Choices

Choice (4)Response

a.

26

b.

30

c.

36

d.

18

## Question 754

### Question

MCQ▾

What is the smallest number of squares that must be shaded so that the line AB becomes a line of symmetry?

### Choices

Choice (4)Response

a.

7

b.

4

c.

5

d.

3