câu hỏi chưa rõ b ơi

Tổng học sinh cả lớp đó là:

12 + 18 = 30 (học sinh)

Tỉ số phần trăm của số học sinh nam so với cả lớp:

18 × 100% : 30 = 60%

Đáp số: 60%

1. How / weather / yesterday? How was the weather yesterday ?

2. Why / aren't / you / train? Why aren't you going by train ?

3. He / going / home / of souvernirs. He is going home instead of buying the souvernirs

4. How far / it / there / Hanoi? How far is it from there to Hanoi ?

5. Is / he / the museum / the zoo? Is he at the museum or the zoo?

6. My brother / not / post office / tomorrow. My brother will not be at the post office tomorrow

7. Did / to bed / 7.00 PM? No, she / not Did she go to bed at 7 p.m? No, she didn't

8. you / at / home / night? Are you at home at night?

9. often / you / badminton? Twice / three times / week. How often do you play badminton? Twice or three times a week.

10. long / it / take / here / there / bus? How long does it take to go from here to there by bus?

1/2 + 2/3 + 3/5 + 7/5 + 3/2 + 4/3

= (1/2 + 3/2) + (2/3 + 4/3) + (3/5 + 7/5)

= 2 + 2 + 2

= 4 + 2 

= 6