If the Energy Conversion Efficiencies in a 3 Step Process

Multiple Choice

If the energy conversion efficiencies in a 3 step process are 30% for the first step, 40% for the second, and 20% for the third, the overall efficiency (step one to end) is about:

A) 2%
B) 10%
C) 20%
D) 50%
E) 90%