Одна деталь весит 1,4 кг, а другая - на 1/4 кг меньше. Сколько весят обе детали вместе?

I am not a pupil/ I am a student.his brother is a pupil. he is in school. My parents are engineers. They are at work. Are you a doctor No I am a teacher. Is you sister a pupil- No, she is an  engineer. She is at work. Her sister is not a Secretary. She is a teacher. Are they doctors No they are pilots Is your sister at home No she is at work. Our father is scientist She is an actress This is my book. It is on the table. My brother is not a scientist, he is an engineer. These are pictures. They are on the wall. The pictures are very beautiful. My granny is a pensioner. She is not at work. She is at home. Are you children pupils/ Yes they are

1. I am not a pupil. I am a student. 2. His brother is pupil. He is at school. 3. My parents are engineers. They are at work. 4. Are you a doctor? No, I am a teacher. 5. Is your sister a pupil? No, she is an engineer. She is at work. 6. Her sister is not a secretary. She is a teacher. 7. Are they doctors? No, they are pilots. 8. Is your sister at home? No, she is at work. 9. Our father is scientist. 10. His aunt is not a doctor. She is an actress. 11. It is my book. It is on the table. 12. My cousin is not a scientist, he is engineer. 13. It is paintings. They are on the wall. Paintings are very beautiful. 14. My grandmother is pensioner. She is not at work. She is at home. 15. Are your children pupils? Yes, they are pupils.