7 DIEM

Gọi số phần thưởng được nhiều nhất là x ( x ϵ N* , phần thưởng)

Vì có 145 quyển vở và 120 cây bút được chia đều thành các phần thưởng nên:

145 ⋮ x, 120 ⋮ x => x = ƯCLN(145, 120)

Ta có 145= 5.29

120=2³.3 .5

=>ƯCLN(145,120)=5

=>x = 5

Vậy được nhiều nhất 5 phần thưởng. Mỗi phần thưởng có:

145:5=29

120:5=24

Lan có số tiền là: 15000 + 8000 =  23000 ( đ )

Trung bình mỗi bạn có số tiền là : 23000 : 2 = 11,500 ( đ )

k mk nha bạn

15. Every house.......... a backyard and a front yard.

a. have

b. has

c. is

d. are

16. I think we..........

a. lost

b. are lost

c. lose

d. are losing

17. People here are..........

a. friendly

b. more friendly

c. more friendlier

d. all are correct

18. .......... go to the museum this weekend?

a. Would you like

b. Shall we

c. Let's

d. all are correct

19.It is.......... here because there's always a lot of traffic.

a. quiet

b. noisy

c. historic

d. all are correct

20. .......... lots of places to see.

a. There are

b. There is

c. It's

d. They're

8. Life in the countryside is.......... . There aren't many things to do there.

a. interesting

b. boring

c. exciting

d. fantastic

9. Living in a house is.......... than living in a flat.

a. convenient

b. inconvenient

c. more convenient

d. more inconvenient

10. Excuse me. Where ts the supermarket? - ..........

a. It's on Quang Trung street. opposite the park

b. Yes, there' s one at the corner of the street

c. Go to the end of the street, it' s on your right

d. A & C

11. I'd like.......... you some things about my neighgourhood

a. to tell

b. tell

c. telling

d. a&c

12. The town has many motorbikes. It's very..........

a. quiet

b. noisy

c. hot

d. peaceful

13. Is Hanoi more.......... than Dalat

a. exciting

b. hot

c. large

d. noisier

14. Excuse me. I need some stamps and envelops. Is there a.......... near here?

a. park

b. cathedral

c. chemist's

d. post office

5. Can you.......... to the university?

a. tell me the way

b. show me the way

c. tell me how to get

d. all are correct

6. Cities are often noisy and crowded.......... Dalat is peacefuland quiet

a. but

b. and

c. so

d. therefore

7. First take the second turning on your letf. Then.......... . It's on your letf

a. straight on

b. go straight ahead

c. keep straight

d. all are correct