câu 1: There is a tree 8m long. A carpenter wants to cut the tree into 16dm long logs. Knowing that, each time he saw 5 minutes, he saw a log, he rested for 3 more minutes. How long does it take for the carpenter to finish cutting the tree?
câu 2: Parents have 6 sons, each son has a younger sister. How many people are there in that family?
câu 3: Something that you have, when you share it with me, but when you share you won't have it?
Câu 1:40 minutes.
Câu 2: 9 peoples.
Câu 3: secret.
câu 2: Parents have 6 sons, each son has a younger sister. How many people are there in that family?
-> Nice: two parents, 6 sisters and a younger sister
câu 3: Something that you have, when you share it with me, but when you share you won't have it?
-> In my opinion, it is: secret, right?