3. 1.5 km to 105 m to 1050 m (select the ratio as a symbol in lowest terms.)
1 điểm
(a) 300:21:210
(b) 250: 15:160
(c) 330:25:240
(d) 200:11:100
4. 3 dozen bananas to 40 apples to 2 1/2 dozen oranges (select the ratio as a symbol in lowest terms.)
1 điểm
(a) 16:18:13
(b) 9:10:7
(c) 18:20:15
(d) 6:7:5
5. The ratio of 8 books to 20 books is
1 điểm
(A) 2:5
(B) 5:2
(C) 4:5
(D) 5:4