They make a base of 50 gallons (20%). they make a "heavy batch of 150 gallons (80%) they mix them both. what is the percent of them both

The percentage when both quantities gets mix = 65 %

Step-by-step explanation:

Given as :

The quantity of base = 50 gallons

Now 20% of 50 gallons = × 50

I.e 20% of 50 gallons = 10 gallons

Again

The quantity of heavy batch = 150 gallons

Now 80% of 150 gallons =   × 150

I.e 80% of 150 gallons = 120 gallons

Now, Total new quantity = 10 gallons + 120 gallons = 130 gallons

And initial total quantity was = 50 gallons + 150 gallons = 200 gallons

∴ percentage when mix both of them = × 100

I.e percentage when mix both of them = 65 %

Hence The percentage when both quantities gets mix = 65 %  answer

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510