# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 553 - 558 of 931

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## Question 553

### Question

MCQ▾Find the equation of a straight line parallel to y-axis at a distance of 30 units on the right hand side of y-axis

### Choices

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

a. | y = 30x | |

b. | x = 30 | |

c. | x = 20y | |

d. | x = 20 |

## Question 554

### Question

MCQ▾A, B and C enter into partnership by making investments in the ratio. After a year, C invests another Rs. 337600 while A withdrew Rs. 45600. The ratio of investments then changes to. How much did A invest initially?

### Choices

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

a. | Rs. 45600 | |

b. | Rs. 96000 | |

c. | Rs. 141600 | |

d. | Question does not provide sufficient data or is vague |

## Question 555

## Question 556

### Question

MCQ▾The mean, median and mode of the following numbers 7,4, 3,5, 6,3, 3,2, 4,3, 4,3, 3,4, 4,3, 2,2, 4,3, 5,4, 3,4, 3,4, 3,1, 2,3 are________

### Choices

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

a. | 3,3, 3 | |

b. | 4,3, 3 | |

c. | 3.47,3, 3 | |

d. | 5,4, 3 |

## Question 557

### Question

MCQ▾Which of the following pairs of equations have the same solution?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 558

### Question

MCQ▾If stands for ‘addition’, stands for ‘subtraction’, stands for ‘division’, stands for ‘multiplication’, stands for ‘equal to’, then of the given alternatives which one is correct?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |