TWO BRAND OF DETERGENT ARE TO BE COMBINED. DETERGENT X CONTAINS 20 PERCENT BLEACH AND 80 PERCENT SOAP, WHILE DETERGENT Y CONTAINS 45 PERCENT BLEACH AND 55 PERCENT SOAP. IF COMBINED MIX IS TO BE 35 PERCENT BEACH, WHAT PERCENT OF THE FINAL MIX SHOULD BE DETERGENT X ?
A) 10 %
B) 32.5 %
C) 35 %
D) 40 %
E ) 60 %
[spoiler]why the answer is D? i found E. here is my solution
20x+45Y=35X+35Y
15X=10Y or 3X=2y?[/spoiler]
A) 10 %
B) 32.5 %
C) 35 %
D) 40 %
E ) 60 %
[spoiler]why the answer is D? i found E. here is my solution
20x+45Y=35X+35Y
15X=10Y or 3X=2y?[/spoiler]
