A) + 100 eu
B) + 60 eu
C) - 100 eu
D) - 60 eu
Correct Answer: B
Solution :
\[\Delta {{S}_{A\to B}}=\Delta {{S}_{(A\to C)}}+\Delta {{S}_{(C\to D)}}+\Delta {{S}_{(D\to B)}}\] \[=\Delta {{S}_{(A\to C)}}+\Delta {{S}_{(C\to D)}}-\Delta {{S}_{(B\to D)}}\] \[=50+30-20\]You need to login to perform this action.
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