Physics - Heat & Thermo Question with Solution | TestHub

All twelve rods have equal thermal conductance.
Let the three vertices next to B have temperature $u$ and the three next to H have $v$.
$$3u=100+2v$$
$$3v=2u$$
$$u=60{}^{\circ }\mathrm{C}$$
A belongs to the first group, so its temperature is $60{}^{\circ }\mathrm{C}$.