| Masses (kilograms) | ||||||
|---|---|---|---|---|---|---|
| Andrew | 2.4 | 2.5 | 3.6 | 3.1 | 2.5 | 2.7 |
| Maria | x | 3.1 | 2.7 | 2.9 | 3.3 | 2.8 |
Andrew and Maria each collected six rocks, and the masses of the rocks are shown in the table above. The mean of the masses of the rocks Maria collected is 0.1 kilogram greater than the mean of the masses of the rocks Andrew collected. What is the value of x ?