Mark yes or no for each pair or ratios below based on whether they are proportional. The first two are done for you. |
1 : 2 and 2 : 4
Proportional? yes |
1 : 4 and 2 : 7
Proportional? no |
2 : 6 and 1 : 3
Proportional? yes |
4 : 5 and 8 : 12
Proportional? no |
3 : 4 and 7 : 12
Proportional? no |
5 : 6 and 10 : 12
Proportional? yes |
7 : 10 and 21 : 30
Proportional? yes |
10 : 2 and 6 : 1
Proportional? no |
3 : 9 and 9 : 27
Proportional? yes |
| Answer yes or no to the questions below based on whether the prices are directly proportional. |
1 can of juice for $2.00 and 4 cans for $6. no |
| 5 liters of paint for $12 and 10 liters for $24 yes |
| 75g of chocolate for $1.50 and 150g for $3.00 yes |
| 3 pairs of socks for $3.00 and 10 pairs for $8.00 no |
| 20 pencils for $2.00 and 50 pencils for $4.00 no |