# IMO Level 1- Mathematics Olympiad (SOF) Class 5: Questions 230 - 235 of 838

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## Question number: 230

### Question

I think of a decimal number. After I have multiplied it by 5 then added 2.1 and then I have subtracted 2 from it, I get 1. What is the decimal number?

### Choices

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

a. | 0.18 | |

b. | 1 | |

c. | 1.8 | |

d. | 18 |

## Question number: 231

### Question

Successor of 100,000,000 is________?

### Choices

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

a. | 100,100,0010 | |

b. | 100,001,001 | |

c. | 100,000,001 | |

d. | 100,100,001 |

## Question number: 232

### Question

which of the following correctly shows 87456321 according to International place value chart?

### Choices

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

a. | 8,74,563,21 | |

b. | 87,456,321 | |

c. | 874,56,321 | |

d. | 8,74,56,32,1 |

## Question number: 233

### Question

What fraction of the figure is shaded in blue color?

### Choices

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

a. | 5 | |

b. |
| |

c. | ||

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

## Question number: 234

### Question

If L, M and N, O exchanges their positions and then L and O moves diagonally and meet at the middle of rectangle, then the direction of L with respect to M is________.

### Choices

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

a. | South-East | |

b. | South-West | |

c. | North-East | |

d. | North-West |

## Question number: 235

### Question

What fraction of the figure is blue shaded?

### Choices

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

a. | ||

b. | 2 | |

c. | ||

d. | 1 |