Question

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 1

Answer:

49.6

Explanation:

I hope you understand

Answer 2

Answer:

20%

Explanation:

Consider the 100 lt fuel in 3 different containers. After applying the mechanisms, the fuel left in 3 containers is 70lt, 80lt and 90lt. Total fuel taken = 300lts. Fuel left after applying mechanism = 240lt. fuel saved = 60. % saving = (60/300)*100 = 20%