# 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

## 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 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. |