Answer:
Concentration of solution A = 23%
and concentration of solution B = 2%
Step-by-step explanation:
Lets get started
lets say that we concentration of solution A be x% and concentration of second solution be y%
we also know that first mixture is obtained by mixing them in ratio of 2:7
so linear equation representing this situation can be written as:
2(x%)+7(y%)= 9(6.66%)
changing percentage to decimal we get,
.02x+.07y=9(.0666)
.02x+.07y = 0.6 (equation 1 )
similarly , second mixture is obtained by mixing them in ratio of 7:3
so linear equation can be written as:
7(x%)+3(y%) = 10(16.7%)
.07x +.03y = 1.67 (equation 2)
solving equations 1 and 2 we get
x = 23 and y = 2
so concentration of solution A = 23%
and concentration of solution B = 2%
That's the final answer
Hope it was helpful !!
