In Jessica's opinion, her weight is greater than 65 kg but less than 72 kg. Her brother doest not agree with Jessica and he thinks that Jessica's weight is greater than 60 kg but less than 70 kg. Her mother's view is that her weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Jessica?
a)67 kg.
b)68 kg.
c)69 kg.
d)Data inadequate
e)None of these

• 67 kg.
  as from these statements, wt can be 66,67,68
  average of these weights is 67 kg... option a)
• 13 years agoHelpfull: Yes(10) No(0)
• Answer is e
  Take J as Jessica age, then according to her, age is 65 > J < 72.
  According to her brother 60 > J < 70
  According her mom J < 68
  
  All three statements are true, possible ages are 61,62,63,64,65,66,67. The average of these numbers is not in options
• 13 years agoHelpfull: Yes(1) No(10)
• Let Jessica's weight by X kg.
  
  According to Jessica, 65 < X < 72
  
  According to Jessica's brother, 60 < X < 70.
  
  According to Jessica's mohter, X
• 6 years agoHelpfull: Yes(0) No(0)