Answer:
1. 10 Downing Street is the British Prime Minister's home.
2. The building is 300 years old.
3. It has got 100 rooms.
4. The Prime Minister's house is on the third floor.
Step-by-step explanation:
The passage provides details about 10 Downing street, also known as Number 10. This building is the home and office of the British Prime Minister. It is located very close to the residence of the queen, that is Buckingham Palace.
The building has existed for three centuries and it has 100 rooms in it. Other features attached to it include a kitchen at the basement, a courtyard and a garden.