Aptitude Interview Question:

Three independent mechanisms A,B and C have been incorporated for fuel saving in a car producing respectively 30%, 20%, and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?

Submitted by: Administrator

In all of the three mechanisms out of 100%

first looses 70% efficiency,

second looses 80% of 30%

efficiency of the first and third loses 60% of 80% of 30%

Then the lack of efficiency is 60% of 80% of 30% = 14.4

total efficiency is (100 - 14.4) = 85.6 (ans)
Submitted by: Administrator