2) If A, B and C are the mechanisms used separately to
reduce the wastage of fuel by 30%, 20% and 10%. What will be
the fuel economy if they were used combined.

Answer Posted / jimesh gajera

100 of 30% is 30 so remaining 70
now 70 of 20% is 14 so remaining 56 and
56 of 10% is 5.6 so remaining 50.40.
so 50.40 is remaining fuel wastage and reduce of fuel
wastage is 100-50.40=49.6%

Is This Answer Correct ?    10 Yes 9 No

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