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प्रश्न
An equivalent ratio of 4 : 7 is
विकल्प
1 : 3
8 : 15
14 : 8
12 : 21
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उत्तर
12 : 21
Explanation;
Hint: `12/21 = (3 xx 4)/(3 xx 7)`
= `4/7`
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