The pictogram shows information about the number of trees planted by a volunteer group in March, April, and May.
| Month | Pictogram |
|---|---|
| March | 5 full triangles |
| April | 5 full triangles |
| May | 5 full triangles and 1 small triangle |
| June |
Key: 1 full triangle represents 16 trees.
Write down the number of trees planted in May.
40 trees were planted in June. Show this information on the pictogram.
What was the total number of trees planted across these four months?