[tex]\large\rm{Answer:}[/tex]
- 70 gallons of 60% acid and (100 - 70) = 30 gallons of 10% acid
[tex]\large\rm{Solution:}[/tex]
Let us take x gallons of 60% acid
Then,
NO. of gallons of 10% acid = (100 - x)
According to question.
60% × x + 10% × (100 -x) = 45% × 100
[tex]\large\mathsf{ \frac{60}{100}}[/tex]x + [tex]\large\mathsf{ \frac{10(100\:-\:x}{100}}[/tex] = [tex]\large\mathsf{ \frac{45}{100}\:×}[/tex] 100
60x + 1000 - 10x = 45.00
50x = 3500
x = [tex]\large\mathsf{ \frac{3500}{50}x}[/tex]
x = 70
