When 6 gm of urea was dissolved in 600 gm of 2 points water. The percentage by mass of urea in a solution is_
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points water. The percentage by mass of urea in a solution is_
Laxmi has a total ₹590 as currency notes in denomination ₹50 , ₹20, and ₹10 . The ratio of the number of ₹50 notes, ₹20 notes is 3:5 . If she has a total of 25 notes. Many notes of each denomination she has?
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