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Question
Which of the following ratios are in proportion?
Options
3 : 5, 6 : 11
2 : 3, 9 : 6
2 : 5, 10 : 25
3 : 1, 1 : 3
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Solution
2 : 5, 10 : 25
Explanation;
Hint:
2 × 25 = 5 × 10
⇒ 50 = 50
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