Question: Two Carnot engines operate in series. The first one receives heat from a TER at 2500 K and rejects the waste heat to another TER

Two Carnot engines operate in series. The first one receives heat from a TER at 2500 K and rejects the waste heat to another TER at a temperature T. The second engine receives this energy rejected by the first one, converts some of it to work, and rejects the rest to a TER at 300 K. If the thermal efficiency of both the engines are the same.
(a) Determine the temperature (T). What-if Scenario:
(b) What would the temperature be if the two engines produced the same output instead?

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