# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 397 - 408 of 1022

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## Question 397

## Question 398

## 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 Rs. 9.80. The number of 50 p coins is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 30 | |

b. | 32 | |

c. | 16 | |

d. | 20 |

## Question 401

## Question 402

## 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

## Question 405

## Question 406

### Question

MCQ▾When a number is reduced by 12, it becomes 20 % of itself. Find the number.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 15 | |

b. | 30 | |

c. | 12 | |

d. | 25 |

## Question 407

## Question 408

### Question

MCQ▾Two numbers are 15 % and 30 % less than a third number respectively. How much % is the second number less than the first?

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | ||

c. | ||

d. |