# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 395 - 405 of 1022

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## Question number: 395

Edit
MCQ▾

If , then x =

### Choices

Choice (4)Response

a.

6

b.

9

c.

0

d.

15

## Question number: 396

Edit
MCQ▾

### Question

An expression is taken away from to obtain , then the expression is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 397

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MCQ▾

### Question

The value of , if is ________.

### Choices

Choice (4)Response

a.

1850

b.

1844

c.

1825

d.

1840

## Question number: 398

Edit
MCQ▾

### Question

The value of x in is ________.

### Choices

Choice (4)Response

a.

3

b.

c.

1

d.

## Question number: 399

Edit
MCQ▾

### Question

The algebraic expression obtained on addition of following algebraic expression is ________.

### Choices

Choice (4)Response

a.

2y

b.

c.

d.

0

## Question number: 400

Edit
MCQ▾

### Question

The value of 25 coins of 20 p and 50 p is Rs. 9.80. The number of 50 p coins is ________.

### Choices

Choice (4)Response

a.

30

b.

32

c.

16

d.

20

## Question number: 401

Edit
MCQ▾

### Question

The value of is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 402

Edit
MCQ▾

### Question

Express 0.0084 in scientific notation.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 403

Edit
MCQ▾

### Question

The number which is multiplied by to obtain a product equal to is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 404

Edit
MCQ▾

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 405

Edit
MCQ▾

### Question

What is the value of at ?

### Choices

Choice (4)Response

a.

0

b.

ac

c.

ab

d.

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