P. 3834. Electric toothbrushes are becoming more and more popular. Calculate the cost of operating one during a year if it dissipates a power of 2 W, and each day you spend 4 minutes cleaning your teeth. The price of 1 kWh electric energy is 34 forints.

(3 points)

Deadline expired.

Statistics on problem P. 3834. 345 students sent a solution. 3 points: 302 students. 2 points: 13 students. 1 point: 21 students. 0 point: 1 student. Unfair, not evaluated: 8 solutions.