# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 721 - 729 of 931

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## Question 721

### Question

MCQ▾A man rows downstream 40 km and upstream 20 km, taking 10 hours each time. The velocity of current is ________

### Choices

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

a. | 5 km/hr | |

b. | 2 km/hr | |

c. | 3 km/hr | |

d. | 1 km/hr |

## Question 722

### Question

MCQ▾The graph of is

### Choices

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

a. | III | |

b. | IV | |

c. | II | |

d. | I |

## Question 723

### Question

MCQ▾Which equation satisfies the data in the table?

X | -1 | 0 | 1 | 2 |

Y | -3 | -1 | 1 | 3 |

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 724

### Question

MCQ▾If the first three letters of the word ‘P R E P A R A T I O N’ are reversed, then last three letters are added and then the remaining letters are reversed and added, then which letter will be exactly in the middle?

### Choices

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

a. | R | |

b. | E | |

c. | N | |

d. | T |

## Question 725

### Question

MCQ▾Given that is a solution of . The other solutions are ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 726

## Question 727

## Question 728

## Question 729

### Question

MCQ▾The simple interest of for x years will be ₹ X on a sum of ________

### Choices

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

a. | ₹ | |

b. | ₹ x | |

c. | ₹ | |

d. | ₹ 100 x |