Question 785072
---	percent	----------------	Amount									
Solution	15	----------------			200	ml						
Water	0	----------------			x	ml						
Mixture	10	----------------	200	+	x	ml						
												
15	*	200	+	0	x	=	10	(	200	+	x	)
3000	+	0	x	=	2000	+	10	x				
0	x		-10	x	=	-3000	+	2000				
-10	x	=	-1000									
/	-10											
x	=	100		ml	Water							
												
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