Question 479999
-------	Price	----------------	quantity										
Tea type I	17	----------------			200	lb							
Tea type II	15	----------------			x	lb							
Total	15.8	----------------	200	+	x	lb							
													
17*200+15*x=15.8(200+x)
3400+15x=3160+15.8x					
15x-15.8x=3160-3400					
-0.8	x	=	-240							/		-0.8											
													
x	=		300	lb	Php 15	Tea type II						
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