Republic Day is circled on this page. In how many years from 2027 to 2050, both included, does Republic Day fall on a Sunday?

Track 26 January (+1 a year, +2 after a leap year): 2027 Tue, 28 Wed, 29 Fri, 30 Sat, 31 Sun, 32 Mon, 33 Wed, 34 Thu, 35 Fri, 36 Sat, 37 Mon, 38 Tue, 39 Wed, 40 Thu, 41 Sat, 42 Sun, 43 Mon, 44 Tue, 45 Thu, 46 Fri, 47 Sat, 48 Sun, 49 Tue, 50 Wed. Sundays: 2031, 2042, 2048 = 3. (4 expects one Sunday every 6 years.)