A Survey of India worker was taking the 2000 census in Behrampur district of Orissa. It was a Wednesday in the second half of the year in the waxing moon phase right after a major national festival. In one of the villages the worker interviewed a toothless old lady sitting in front of a hut. The lady declared My granddaughter is about as many days as my daughter is weeks: and my granddaughter is as many months as I am years. The three of us together are 130 years. The surveyor quickly took out her calculator and started punching in a few numbers to find the lady's age. Her calculator has a seven segment LCD display but she was puzzled to see the number so she did the calculations agaiw. this time assuming 30 days in a month and 365 days in a year. This time the results were correct. Can you tell what did the calculator display showed: if you made the same assumptions?

• The ratio of ages between granddaughter , daughter and lady are 1:7:12 .
  
  age of lady is 130*12/20 = 78 years
  age of daughter = 130*7/20 = 91/2 = 45.5 yrs
  age of granddaughter = 130*1/20 = 6.5 yrs
• 13 years agoHelpfull: Yes(32) No(2)
• please explain
• 13 years agoHelpfull: Yes(2) No(1)