A family has several children. Each boy in this family has as many sisters as brothers, but each girl has twice as many brothers as sisters. How many brothers and sisters are there?
Explanation
Given,
A family has several children.
Each boy in this family has as many sisters as brothers, but each girl has twice as many brothers as sisters. By checking the given options.
1) 1 and 2
Here we see only one boy is there so he has not as many sisters as brothers, thus this option is gets eliminated.
2) 3 and 4
Here we see if one boy is selected he has two brothers which are not as many as sisters, thus this option is gets eliminated.
3) 6 and 3
Here we see if one boy is selected he has five brothers which are also not as many as sisters, thus this option is gets
eliminated.
4) 4 and 3
Here we see if one boy is selected he has three brothers and three sisters, and if a girl selected she has two sisters and four brothers which is she has twice as many brothers as sisters.
Hence, the correct answer is 4 and 3.
