DAY 29

Comment

It is straightforward to find the total number of flats.
Finding the total number of phones is more complex.

Answer

There are more telephones than flats.

Readers' methods

J Poyet, Leicester LE4:
2+13+23+1 = 39 (flats).
There are more phones than this because there are already 46 phones in the flats with 2 phones.

Matt, SE3
There are only 2 flats with 0 phones,
therefore we only need 3 flats with 2 or more phones to have more phones than flats.