A Meterstick Is Supported by a Knife-Edge at the 50

Multiple Choice

A meterstick is supported by a knife-edge at the 50.0-cm mark.Doug hangs masses of 0.48 and 0.76 kg from the 10-cm and 80-cm marks,respectively.Where should Doug hang a third mass of 0.25 kg to keep the stick balanced?

A) 64.4 cm
B) 25.6 cm
C) 74.4 cm
D) 35.6 cm
E) 50 cm