A mixture contains pure ghee and vanaspati in the ratio 7:2. If it contains 20 litres more ghee than vanaspati, the quantity of pure ghee in the mixture is:
Given:
Ratio of ghee to vanaspati = 7 : 2
Difference in quantity of ghee and vanaspati = 20 litres
Solution:
Let the common multiplying factor be x.
If the ratio is 7:2, let the common multiple be x.
Then, quantity of ghee = 7x
Quantity of vanaspati = 2x
Difference = 7x−2x=5x
Given, difference = 20 litres
So,
5x=20
Quantity of pure ghee = 7x = 7×4=28 litres
Final Answer:
Option C) 28 litres
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