# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 394 - 404 of 1022

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## Question 394

### Question

MCQ▾

The CP of 25 articles is equal to the SP of 20 articles. The gain % is ________.

### Choices

Choice (4)Response

a.

50 %

b.

30 %

c.

20 %

d.

25 %

## Question 395

MCQ▾

If , then x =

### Choices

Choice (4)Response

a.

6

b.

9

c.

0

d.

15

## Question 396

### Question

MCQ▾

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

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 397

### Question

MCQ▾

The value of , if is ________.

### Choices

Choice (4)Response

a.

1850

b.

1844

c.

1825

d.

1840

## Question 398

### Question

MCQ▾

The value of x in is ________.

### Choices

Choice (4)Response

a.

3

b.

c.

1

d.

## Question 399

### Question

MCQ▾

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

### Choices

Choice (4)Response

a.

2y

b.

c.

d.

0

## Question 400

### Question

MCQ▾

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

### Choices

Choice (4)Response

a.

30

b.

32

c.

16

d.

20

## Question 401

### Question

MCQ▾

The value of is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 402

### Question

MCQ▾

Express 0.0084 in scientific notation.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 403

### Question

MCQ▾

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

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 404

MCQ▾

### Choices

Choice (4)Response

a.

b.

c.

d.