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Help Yashvi Bhardwaj! Anyone can contribute an answer, even non-tutors.
This is of ratio I didn't understood this
Example:
38kg(or units) of rice = 275.50
1kg (or units) of rice = 275.50/38 = 7.25
20kg (or units) of rice = 7.25 * 20 =145
=) hope it helps.