A heat transformer - GATE ME '07

A heat transformer is a device that transfers a part of the heat, supplied to it at an intermediate temperature, to a high-temperature reservoir while rejecting the remaining part to a low-temperature heat sink. In such a heat transformer, 100 kJ of heat is supplied at 350 K. The maximum amount of heat in kJ that can be transferred to 400 K, when the rest is rejected to a heat sink at 300 K is A. 12.50 B. 14.29 C. 33.33 D. 57.14