Three tanks are capable of holding 36, 84 and 90 Litres of milk. Determine the capacity of greatest vessel which can be used to fill each one of them on exact number of times
2

The correct answer is .44

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho