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प्रश्न
Reshma prepared 18 kg of Burfi by mixing Khoya with sugar in the ratio of 7:2. How much Khoya did she use?
उत्तर
The ratio of Khoya to sugar = 7:2
Let the quantity of Khoya be 7x kg and sugar be 2x kg.
∴ 7x + 2x = 18
⇒ 9x = 18
⇒ x = `18/9` = 2
∴ The quantity of Khoya be (7 × 2) kg = 14 kg
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