All resistors have the same value. We need to calculate the equivalent resistance in the wires attached to ohmmeter.
On the right we redraw the circuit in order to have an easier point of view to solve it.
PRUEBAS OBJETIVAS DE INGENIERÍA ELÉCTRICA
LUÍS IGNACIO EGUÍLUZ MORÁN
PEARSON EDUCACIÓN, 1986
ISBN 9788420512570