If A,B,C are the mechanisms used seprately to reduce the wastage of fuel by 30%,40%,10%.what will be the fuel economy if they were used combine?
1-68.4
2-62.2
3-58
4-27

• For A 100-30= 70
  For B 100-40= 60
  For C 100-10= 90
  (70*60*90/100/100/100)*100= 37.8
  100-37.8= 62.2
• 12 years agoHelpfull: Yes(1) No(1)
• in starting 100
  wastage of fuel by A 30%
  so left 70
  then 42
  then 37.8
  answr-62.8
• 12 years agoHelpfull: Yes(0) No(3)