Túi thứ 1 đựng 27 kg gạo và gấp 3 lần số kg gạo ơ túi thứ 2 . Hỏi phải đổ bao nhiêu kg gạo ơ túi thứ 1 sang túi thứ 2 để 2 túi có số gạo bằng nhau

Các câu hỏi liên quan

11. Which subject are they talking……………….. ? A. with B. to C. about D. in 12. What………….at the weekend? A. Jane does do B. does Jane do C. do Jane D. Jane does 13. My classmate, Oanh, likes collecting things. She has a good………………..of coins. A. collector B. collect C. collection D. collective 14. She alwaysspeaks too…………………... A. fastly B. fast C. quick D. slow 15. How……………..water is there in the bottle? A. many B. a lot C. much D. little 16. Paper is often made………………wood. A. of B. from C. with D. into 17. Graham Bell was born………………….March 3, 1847. A. in B. on C. at D. during 18. Children are not old enough to look after………………….. A. themself B. itself C. themselves D. ourselves 19. They promised……………..us. A. to help B. protect C. help D. listen to 20. Don’t wait…………………me if I’m late. A. in B. from C. for D. on III. Choose the words whose underlined part is pronounced different from the others 1. A. bought B. cough C. sight D. daughter 2. A. happy B. character C. fat D. classmate 3. A. smile B. thick C. fit D. visit 4. A. hot B. hat C. hour D. hall 5. A. last B. fast C. task D. taste IV. Choose the word with a different stress pattern from the others in each line 1. A.airport B.duty – free C.bookshop D.praiseworthy 2. A.snow – white B.trustworth C.filmmaker D.homesick 3. A.offer B.advice C.agree D.mistake 4. A. relation B. question C.decision D.agreement 5. A. short – sighted B.underpass C.expert D.trouble 6. A. July B.rely C. poison D.retain 7. A.coffee B.discover C.rewrite D.record 8. A.event B.maintain C.herself D.happen 9. A.bookshop B.lucky C.answer D.enjoy 10. A.alone B.become C. foolish D. decision 11. A.machine B.forget C.employee D.nation 12. A. relax B.underlay C.silly D. pretty 13. A.historic B.begin C.demoracy D.nation 14. A.happy B.meaning C.question D.snow – white 15. A.event B.enjoy C.airport D.retain 16. A.handsome B. become C. answer D.happen 17. A.basic B.neighbour C.enormous D.hobby 18. A. reread B.foolish C. enter D.birthday 19. A.comfortable B.childhood C.volunteer D.neighbourhood 20. A.asleep B.country C.abroad D.machine 21. A.copy B. happen C.differ D. receive 22. A.gather B.relax C.picture D.artist 23. A. lonely B. enjoy C.hotel D.describe 24. A.rename B.famous C.religious D.annoy V. Read the following passage and circle the right word ( A, B, C or D) each question: In 2001, an American, Dennis Tito, became the world’s first space tourist. He travelled to the International Space Station and stayed there for ten days. A year later, South African millionaire, Mark Shuttleworth, went on the same trip. When he returned, he said, “Every second will be with me for the rest of my life”. Both men paid 20 million dollars for their holidays. A company is planning to build a hotel in the space. It will have everything a normal hotel has, except that the bedrooms won’t have windows. The guest will see pictures of the space. The company’s president thinks that a five-day holiday at the hotel will cost only 25,000 dollars. They plan to finish the hotel by 2020. 1. Who was the first space tourist? A. American Dennis B. Dennis Tito C. South African millionaire D. Mark Shuttleworth 2. How long did Dennis stay in space? A. A year B. Ten days C. Five days D. Every second 3. What was the cost of the trip? A. Twenty dollars B. 20,000 dollars C. 20,000,000 dollars D. 25,000 dollars 4. What is special about the hotel in space? A. It will have everything that a normal hotel has. B. There will be no windows in the bedroom. C. People can stay for only five days. D. It doesn’t have any beautiful pictures. 5. What is 2020? A. The time they will finish the hotel. B. The cost of each holiday. C. The time they will start building the hotel. D. The time each guest can stay at a hotel.