A platinum resistance thermometer forms one arm of a Wheatstone bridge. At 0∘C, the bridge balances with standard arms of 100Ω each. When the thermometer is placed in a hot oil bath, the bridge becomes unbalanced. To restore balance, the standard resistor in the adjacent arm must be increased to 120Ω. If the temperature coefficient of platinum is 0.004/∘C, find the temperature of the oil bath.