Physics

Problem

A community hall has a

2.4\,\text{kW}

power supply. Ten LED lamps, each consuming

15\,\text{W}

, are already switched on. What is the greatest number of fans, each rated

60\,\text{W}

, that can still be operated without exceeding the supply limit? a) 38 b) 35 c) 37 d) 40