The efficiency of an engine is found to increase from 0.3 to 0.4 when the temperature of the sink is lowered by `50^(@)C.` Calculate the temperature of sink and source.

Explanation

To solve the problem step by step, we will use the formula for the efficiency of a heat engine, which is given by:

\[ \text{Efficiency} = 1 - \frac{T_2}{T_1} \]

where \( T_1 \) is the temperature of the source and \( T_2 \) is the temperature of the sink.

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