The average weight of 100 students is 34 kg. the average weight of first 49 students is 34 kg and of last 50 students is 32 kg. What is the weight of the 50th student ?
Answer & explanation
Correct answer: option 2
Total weight of all 100 students = 3400
Total weight of first 49 student = 34 x 49
Total weight of Last 50 student = 50 x 32
Weight of 50 student = 134 kg