QUESTION :
B. Which of the following are proportions? Check the appropriate line of your answer.
1.) 6 : 15 = 2 : 5
2.) 3 : 4 = 6 : 8
3.) 7 : 10 = 5 : 7
4.) 18 chocolates to 6 boxes =
36 chocolates to 12 boxes
5.) 10 flowers to 2 vases =
30 flowers to 6 vases
ANSWER :
YES
1. /
2. /
3.
4. /
5. /
NO
1.
2.
3. /
4.
5.
SOLUTION :
1) 6 : 15 = 2 : 5
6 × 5 = 15 × 2
30 = 30
2) 3 : 4 = 6 : 8
3 × 8 = 4 × 6
24 = 24
3) 7 : 10 = 5 : 7
7 × 7 = 10 × 5
49 ≠ 50
4) 18 : 6 = 36 : 12
18 × 12 = 6 × 36
216 = 216
5) 10 : 2 = 30 : 6
10 × 6 = 2 × 30
60 = 60
