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a)Đổi 50 phút = 5/6 h

Xe máy đi trước ô tô: 32,4 * 5/6 = 27 (km)

Thời gian cả 2 xe cùng đi là:

(162-27):(32,4+48,6) = 135 : 81 = 5/3 (giờ) = 1h40'

Hai xe gặp nhau lúc: 7h30' + 50' + 1h40' = 10h

b) Điểm gặp nhau cách A: 32,4(5/6 + 5/3) = 32,4 * 5/2 = 81(km)

Đáp số: a) 10h

b)81km

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1. tính dt  tam giác nào vậy?

2. ko có đơn vị thì tính dt kiểu gì?

1. Alex loves playing sports and hanging out with his friends.

2. Alex doesn't like skateboarding or rock climbing.

3. Susan prefers playing board games at home.

4. Susan hates playing sports and jogging.

5. Peter enjoys designing bags and clothes.

6. I hate watching football on TV.

7. They like playing computer games.

8. Do you like riding a bike?

9. We love learning English.

10. They prefer playing inside to playing outside.

9. I suggest turning on the TV to watch the weather forecast.

10. Her mother suggests that I should stop working and take a rest.