if a person spending 75% of his salary in expense. if his salary is incresed by 20% and expense increased by 10%. what is his saving percentage.

• let income=100,expenditure=75,saving=25
  new income=120,new expenditure=(110/100)*75=165/2
  new saving=120-(165/2)=75/2
  increase in saving=(75/2)-25=25/2
  increase percentage=(25/2)*(1/25)*100=50%(ans)
  
• 12 years agoHelpfull: Yes(6) No(0)
• If today his salary is X,
  expance is 75% so,
  
  salary increase 20% means now salary is 6X/5,( x+x/5)
  
  if salary is 6X/5 his Expance is 85% so
  
  saving is 6x/5+85=100 so saving is 12.5
  
• 12 years agoHelpfull: Yes(2) No(0)
• if initial salary is 100 so his expense is 75, and savings is 25
  now his salary is 120 so his expense is (75+7.5), so now his savings is 37.5=(25+12.5)
  means his savings are increased by 50% comparing with previous one
• 12 years agoHelpfull: Yes(1) No(0)