| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | SER R class - Withdrawal |  |  |  |  |  |
| 3 | Year | R class in service at start of year | R1 class in service at start of year | Quantity withdrawn | Locomotive numbers | Notes |
| 4 | 1931 | 11 | 13 | 1 | 1342 | - |
| 5 | 1932 | 10 | 13 | 1 | 1077 | - |
| 6 | 1934 | 9 | 13 | 3 | 1126, 1152, 1338 | - |
| 7 | 1935 | 6 | 13 | 1 | 1153 | - |
| 8 | 1937 | 5 | 13 | 1 | 1125 | - |
| 9 | 1939 | 4 | 13 | 1 | 1155 | - |
| 10 | 1941 | 3 | 13 | 1 | 1336 | - |
| 11 | 1942 | 2 | 13 | 1 | 1070 | - |
| 12 | 1943 | 1 | 13 | 1 | 1124 | - |
| 13 | 1949 | 0 | 13 | 1 | 1127 | - |
| 14 | 1955 | — | 12 | 2 | 31154, 31335 | - |
| 15 | 1958 | — | 10 | 2 | 31069, 31147 | - |
| 16 | 1959 | — | 8 | 6 | 31010, 31107, 31128, 31174, 31339, 31340 | - |
| 17 | 1960 | — | 2 | 2 | 31047, 31337 | - |

Question: How many locomotives in the R1 class were withdrawn in the years 1949, 1955, 1959, and 1960?
Answer: Of the 13 R1 class, one was withdrawn in 1949, two in 1955; after 1959, only nos. 31047 and 31337 were left and these were withdrawn in 1960.