Question : The average weight of 9 boxes is 61 kg. If three boxes having an average weight of 70 kg are removed, then what will be the new average weight of the remaining boxes?
Option 1: 55.5 kg
Option 2: 54 kg
Option 3: 56.5 kg
Option 4: 45.5 kg
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 56.5 kg
Solution : The average weight of 9 boxes is 61 kg. Total weight of 9 boxes = 9 × 61 = 549 kg Three boxes having an average weight of 70 kg are removed. The total weight of those three boxes = 3 × 70 = 210 kg Total weight of remaining 6 boxes = 549 – 210 = 339 Average weight of remaining 6 boxes = $\frac{339}{6}=56.5$ kg Hence, the correct answer is 56.5 kg.
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Question : The average weight of 20 boxes of oranges is 2 kg, and the average weight of 30 boxes of mangoes is 3 kg. Find the average weight of these boxes of fruits, taken together.
Question : The average weight of six persons is 30 kg. If a new person joins this group, then the average weight becomes 28 kg. What is the weight of the new person?
Question : The average weight of nine persons is 25 kg. If a new person joins this group, then the average weight becomes 26 kg. What is the weight of the new person?
Question : A group of students has an average weight of 42 kg. One student of weight 48 kg leaves the group and another student of weight 44 kg joins the group. If the new average weight becomes 41.6 kg, then how many students are there in the group?
Question : The average weight of 10 boys is increased by 3kg if one of them weighing 40 kg is replaced by a new boy. The weight of the new boy is:
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile