The one that you have marked in the picture is right because you are taking away two hours and dividing 400 by s
Three million three hundred eighty eight thousand one hundred ninety eight.
Look at the picture. I have no idea why I can't add an answer.
So basically, he wants to make mixture where lemon=lime
it is 6 gallons so
40% of 6=0.4 times 60=2.4=lemon
60% of 6=0.6 times 60=3.6=lime
so to make them equal
3.6-2.4=1.2
he must add 1.2 gallons of 100% lemon juice to make a mixture of 50% lemon and 50% lime
1.2 gallons is the answer
