The average weight of 10 students increased by 2 kg. if a student whose weight is 50kg is replaced by a new student. What could be the weight of the new student?
Answer & explanation
Correct answer: option 2
Total number of students = 10
Increase in weight = 2 kg
Replaced weight = 50 kg
so the weight of the new student will be,
50 + 2 × 10 = 70