Answer:
Quantity of  cranberry juice = 95  ml Â
Quantity of  orange  juice = 95  ml
Step-by-step explanation:
Step 1
Given ,
We have  80% cranberry juice and  4% of  orange juice.
We have to find how much each should be mixed to make 190 ml of a  60% cranberry-orange juice blend.
Step 2
Let's assume
Quantity of  cranberry juice =x ml Â
Quantity of  orange  juice =y  ml Â
Then,
x + y = 190
and
x×80100 +y×4100 = 190×60100 Â
⇒ 0.8x+0.4y = 114  Â
⇒ 2x+y = 285 Â
⇒ y = 285−2x Â
Step 3
Substituting  y = 285−2x  in  x + y = 190 Â
⇒ x+285−2x = 190 Â
⇒ −x = 190−285 Â
⇒ −x = −95 Â
⇒ x = 95  ml Â
Substituting x = 95  in  x + y = 190
⇒ 95 + y = 190 Â
⇒ y = 190−95 Â
⇒ y = 95 ml Â
So,
Quantity of  cranberry juice =95  ml Â
Quantity of  orange  juice = 95  ml Â