There is a shortage of tubelights, bulbs and fans in a village - Kharghar. It is found that

All houses do not have either tubelight or bulb or fan.
exactly 19% of houses do not have just one of these.
atleast 67% of houses do not have tubelights.
atleast 83% of houses do not have bulbs.
atleast 73% of houses do not have fans.
What percentage of houses do not have tubelight, bulb and fan?

• Its 42 % But i like to solve in Easy way........
  Let there are 100 houses
  so number of items required = 300
  number of item missing in whole village = 67+83+73=223
  19 houses not have any 1 of these so
  ->100-19=81 houses should not have 2 or 3 item in there house
  -> 223-19=204 item missing in this 81 house
  let X number of house have 2 item missing so 81-X houses have 3 item missing
  so-> 2X + 3(81-X)=204
  X=39
  81-x= 42 houses not have any of these item
• 12 years agoHelpfull: Yes(3) No(1)
• 42%
• 14 years agoHelpfull: Yes(1) No(1)
• Ans: 42%
  
  Let's assume that there are 100 houses. Hence, there should be total 300 items i.e. 100 tubelights, 100 bulbs and 100 fans. From the given data, we know that there is shortage of atleast (67+83+73) 223 items in every 100 houses. Also, exactly 19 houses do not have just one item. It means that remaining 81 houses should account for the shortage of remaining (223-19) 204 items. If those remaining 81 houses do not have 2 items each, there would be a shortage of 162 items. But total of 204 items are short. Hence, atleast (204-162) 42 houses do not have all 3 items - tubelight, bulb and
• 14 years agoHelpfull: Yes(1) No(1)
• 42% houses do not have tubelight, bulb and fan.
• 14 years agoHelpfull: Yes(0) No(1)