Required Mathematical Intelligence

Chapter 58 Congcong and Zaozao

Some businessmen make their names very vivid.I once saw a butcher shop called Knife & Meat.In Wales, I heard of a solicitor who wrote "Wills Contest" on the signboard.Not long ago I saw in the papers a money manager whose name was "Penny."

Mentioning newspapers reminds me of two newspaper vendors in our local area who are proud of the names "Congcong" and "Zaozao".

On the street where they delivered their papers in the morning, the number of dwellings was the same on both sides.Cong Cong is in charge of the newspaper delivery task on one side, and Zao Zao is in charge of the newspaper delivery task on the other side.However, since Congcong never came early to deliver papers, early every time he delivered papers from Congcong's side to five families first, and after Congcong came, he began to deliver papers from the sixth house.At this time Zao Zao went to the other side of the road to start his own work from scratch.

Although Zao Zao always delivers the newspaper early, he is not smart, so Cong Cong, who is not early but smart, always completes his tasks faster and more than Zao Zao.Then, go to the other side of the street to deliver the last nine newspapers early.

It is clear that the number of households that Congcong delivers newspapers to is much higher than that of Zaozao, but how many households are more?
[Answer: No matter how many households there are on this street, Congcong always delivers newspapers to eight households more than Zaoqian. ]
(End of this chapter)