Three workers each took on 5 hours of overtime, during which they assembled electrical switches. For their work, they shared 4700 Ft in proportion to their performance. The first worker received 2000 Ft, the second on average completed a switch in 4 minutes, and the third received 300 Ft less than the second. How many switches were assembled during the overtime?
The second worker, on average, completed a connection in 4 minutes, thus in 5 hours, he completed $75 \text{ pieces}$. 

From the total payment of 4700 Ft, the first worker received 2000 Ft, so the remaining 2700 Ft was shared between the second and third workers. According to the problem statement, the third worker received 1200 Ft, while the second worker received 1500 Ft. Since the second worker completed 75 pieces for 1500 Ft, the labor cost for one connection is $20 \text{ Ft}$. For 4700 Ft, the workers completed a total of 235 connections.

(Indeed, the first worker completed 100 pieces for 2000 Ft, the second worker completed 75 pieces for 1500 Ft, and the third worker completed 60 pieces for 1200 Ft, which totals 4700 Ft and 235 pieces.)

Gyöpös Noémi (Csurgó, Municipal Gymnasium, 8th grade)