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GeekInterview.com > Placement Papers > TCS > Quantitative Aptitude
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Question: If A,B,C are the mechanism used seperately to reduce the wastage of the fuel by 30%, 40%, 10% What will be the fuel economy if they were used Combined?
Answer: A. 68.4
B. 62.2
C. 58
D. 27 |
| July 07, 2007 14:49:50 |
#1 |
| mnotageek |
Member Since: July 2007 Total Comments: 1 |
RE: If A,B,C are the mechanism used seperately to redu...
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| ok let us suppose 100 kg of fuel is being wasted.. if i use the A then 30 kg will be saved n 70 kg will be wasted. now if i bring in B it will save 40% of 70 n (70*0.6)=42 kg will be wasted. Now if i incorporate C then it will save 10%of 42 i.e..,(42*0.9) 37.8 kg will be wasted... so 100-37.8=62.2 kg will be saved.. so ans is 62.2% |
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