Question

The average weight of 20 girls was increased
by 1kg if 2 girls of 48kg and are replaced by 2
boys. Find the average weight of both the boys​

Answer 1

Answer:

average weight of 2 boys will be 68kg

Step-by-step explanation:

Since total no of girls are 20 and by replacing 2 girls, the same weight is increasing by 1 kg per girl. That means that the 2 boys weight is contributing additional 20kg so whatever average weight is of those 2 girls, the average wight of 2 boys will be calculated after adding 20 to that (48+20=68kg).

I might be wrong but that's what I think the answer should be.

To make it more simpler let's take an example.

Let's say there are 20 girls each weights 24 kg hence the average weight is 240/20=24 kg