Tổng số phần bằng nhau là 2 + 1 = 3 (phần)

Số chân thỏ là 384 : 3 = 128 (chân)

Số chân gà là 384 : 3 x 2 = 256 (chân)

Số con thỏ là 128 : 4 = 32 (con)

Số con gà là 256 : 2 = 128 (con)

1. c

2. a

3. d

4. e

5. b

My brother lives in HCMC. He (1) is a teacher of math. He goes to work (2) from Monday to Saturday. The school starts (3) at 7.00 in the morning and (4) ends at eleven fifty. After work, he comes back (5) and has lunch at (6) a quarter past twelve. In the afternoon, he (7) does the housework and plays games. In the (8) evening after dinner he watches T.V or (9) reads books. He goes to bed at half (10) past eleven.

1, first     second     three     tenth

2, doctor     father     engineer     teacher

3, floor     stool     chair     bench

4, stand     go     wash     teeth

5, our     his     my     it's

1. b

2. e

3. d

4. c

5. a

132=2^2..3.11

360=2³.3².5

ƯCLN(132;360)=2².3=12