A family has a man, his wife, their four sons and their wives. The family of every son also has 3 sons and 1 daughter. Find the total number of male members in the whole family.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 17
Count the males generation by generation; the wives and daughters are left out.
First generation: the man \(=1\) male
Second generation: his four sons \(=4\) males
Third generation: each son has 3 sons, \(4\times3=12\) males
Total \(=1+4+12=17\)