The average weight of 50 people is 40 kg. If one person leaves the group and the average decreases by one, what is the weight of the person who left?
A79 kg
B59 kg
C49 kg
D89 kg
A79 kg
B59 kg
C49 kg
D89 kg
Related Questions:
The average of numbers N1 and N2 is 17. The average of numbers N2 and N3 is 44. What is the difference between N3 and N1?