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?

Option 1: 22 kg

Option 2: 14 kg

Option 3: 15 kg

Option 4: 16 kg

Question : In a class, the average weight of 4 boys is 50 kg and the average weight of 4 girls is 40 kg. What is the average weight of all the 8 students taken together?

Option 1: 44 kg

Option 2: 48 kg

Option 3: 45 kg

Option 4: 42 kg

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?

Option 1: 15

Option 2: 10

Option 3: 8

Option 4: 12

Question : The average weight of the 25 members of the group is 39 kg. The average weight of 27 members of another group is 21 kg. What will be the total weight of the members of both groups?

Option 1: 1426 kg

Option 2: 1542 kg

Option 3: 1507 kg

Option 4: 1714 kg

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