CREATE TABLE table_25029 ("Date" TEXT, "Builder" TEXT, "Type" TEXT, "Operator" TEXT, "Number" TEXT, "Withdrawn" TEXT, "Status" TEXT)

List the number of builders where the withdrawn is 1951 and number is 42.
SELECT COUNT("Builder") FROM table_25029 WHERE "Withdrawn" = '1951' AND "Number" = '42'
SELECT COUNT("Builder") FROM "table_25029" WHERE "Number" = '42' AND "Withdrawn" = '1951'