Plz explain with steps..
What s de answer for this 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% ans 61..
Answers were Sorted based on User's Feedback
Answer / saji
chance that A is not efficient=.7
if work together=.6*.7*.9=.378
so if they work together=1-.378=.622=62.2%
|Is This Answer Correct ?||25 Yes||1 No|
Answer / feedow
chance that a dont works is .7
b works is .6
c works is .9
so net efficiency is 1-(.7*.6*.9)
|Is This Answer Correct ?||13 Yes||1 No|
Answer / mardana
3rd person is correct ans is 62.2
|Is This Answer Correct ?||8 Yes||0 No|
Answer / kartik
its simple...just use the follow formula...
here since it is saving therefore we use
therefore for 1st 2 we get
then this intermediate ans wid 3rd gives..
|Is This Answer Correct ?||6 Yes||0 No|
Answer / tinku
|Is This Answer Correct ?||3 Yes||13 No|
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