Question

Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved?
(a) 62.2% (b) 68% (c) 61% (d) 64% (e) 56%; Three independent mechanisms A, B and C have been incorporated for power saving in a plant producing respectively 30%, 40% and 10% efficiency. Assuming that they operate independently, what is the net power efficiency achieved?; (a) 62.2% (b) 68% (c) 61% (d) 64% (e) 56%

Answer 1

i think so that the answer is 62