Ajar contains 0.25 liter of apple juice and 0.3 liter of grape juice. melissa poured 0.75liter of pineapple juice into the jar. she drank 0.20 liter of the mixture.

1.10 litres

Step-by-step explanation:

0.25  + 0.3 = 0.55

0.55 + 0.75 = 1.30

1.30 - 0.20 = 1.10

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18