Hello student,
I hope you are doing well.
We are here to help but as you can see that the question is not quiet clear. So, I request you to please re-write your question clearly because being a mathematical problem the question needs to be precise.
In order to, to help you further I am providing you a link assuming that the question you are asking is the same present there:
https://learn.careers360.com/ncert/question-the-cost-of-4-kg-onion-3-kg-wheat-and-2-kg-rice-is-rs-60-the-cost-of-2-kg-onion-4-kg-wheat-and-6-kg-rice-is-rs-90-the-cost-of-6-kg-onion-2-kg-wheat-and-3-kg-rice-is-rs-70-find-cost-of-each-item-per-kg-by-matrix-method/
I hope you find your solution.
Thank You.
Question : In a class of 60 students, there are 35 boys. The average weight of boys is 42 kg and the average weight of the full class is 46.5 kg. Find the average weight of girls in the class.
Option 1: 48.7 kg
Option 2: 49.7 kg
Option 3: 52.8 kg
Option 4: 56.7 kg
Question : The average weight of R, P, and K is 40 kg. If the average weight of P and K is 45 kg and the average weight of R and K is 35 kg, then what is the weight of K?
Option 1: 40 kg
Option 2: 70 kg
Option 3: 90 kg
Option 4: 120 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 : The average weight of apples in a basket is 50 kg. 6 more apples with an average weight of 60 kg are added to the basket. If the average weight of the basket is increased by 5 kg, find the original number of apples in the basket.
Option 1: 4
Option 2: 6
Option 3: 2
Option 4: 8
Question : Five members of a team are weighted consecutively, and their average weight is calculated after each member is weighted. If the average weight increases by one kilogram each time, how much heavier is the last player than the first one?
Option 1: 4 kg
Option 2: 20 kg
Option 3: 8 kg
Option 4: 5 kg
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