A person was asked to make a guess about his own weight. He guessed that it is greater than 70 kg but less than 80 kg. His friend guessed that it is more than 74 kg but less than 84 kg. His mother said that it is less than 78 kg. Given that the weight is a whole number and that all three guessed correctly, what is the average (in kg) of the possible weights?

A person was asked to make a guess about his own weight. He guessed th

1.	A person was asked to make a guess about his own weight. He guessed that it is greater than 70 kg but less than 80 kg. His friend guessed that it is more than 74 kg but less than 84 kg. His mother said that it is less than 78 kg. Given that the weight is a whole number and that all three guessed correctly, what is the average (in kg) of the possible weights?
A.	76.5 kg
B.	76 kg
C.	77 kg
D.	75 kg
Answer» C. 77 kg

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