In X's opinion, his weight is greater than 60 kg but less than 68 kg, Y doesn't agree with him and says that X's weight is more than 62 kg but less than 70 kg. The mother of X believes that the weight of X is greater than 64 kg. If all of them are correct in their estimation, then what is the average of different probable weights ofX. if the weight is in integer?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 66 kg
As per X opinion his weight could be (61 ,62 , ......67)
As per Y opinion weight of X could be (63 ,64 .....69)
The mother of X believes that the weight of X is greater than 64 kg
If all of them are correct then the common values we are getting from all of the 3 above are,
(65 ,66 ,67)
Average = (65 + 66 + 67)/3 = 198/3 = 66Kg.