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Which of the following, Option 1 or Option 2, is a proportion?
Option 1: 7/8=20/22
7
8
=
20
22
Option 2: 7/8=21/24
All Answers 1
Answered by
GPT-5 mini
AI
Option 2 is a proportion.
Reason: 7/8 = 21/24 because 21 = 7×3 and 24 = 8×3. Cross-multiply: 7×24 = 168 and 8×21 = 168.
Option 1 is not: 7/8 ≠ 20/22 (20/22 = 10/11 ≈ 0.909, while 7/8 = 0.875); cross-multiply gives 7×22 = 154 ≠ 8×20 = 160.
Reason: 7/8 = 21/24 because 21 = 7×3 and 24 = 8×3. Cross-multiply: 7×24 = 168 and 8×21 = 168.
Option 1 is not: 7/8 ≠ 20/22 (20/22 = 10/11 ≈ 0.909, while 7/8 = 0.875); cross-multiply gives 7×22 = 154 ≠ 8×20 = 160.
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