Correct Answer - Option 1 : Monday

Given: My anniversary is on 25 November and my birthday is on 20 December, celebrated my anniversary on Thursday.

So, Anniversary is celebrated on 25th November is Thursday.

Number of days from 25th November to 20th December are

Number of days in November is 30

Remaining days in November is 30 - 25 = 5 days

Number of days up to 20th December is 20 days

⇒ 5 + 20 = 25 days

Number of odd days = (25 ÷ 7) = 3 weeks + 4 odd days

**Code of the week days:**

No. of odd days |
Day |

0 |
Sunday |

1 |
Monday |

2 |
Tuesday |

3 |
Wednesday |

4 |
Thursday |

5 |
Friday |

6 |
Saturday |

20th December is Thursday + 4 = Monday

Hence, **"Monday"** is the correct answer.