Write the following set in roster (Tabular) form :

A₄ = {x : x is a two digit number and sum of the digits of x is 7 }

A₄ = {x : x is a two digit number and sum of the digits of x is 7}

16 ⇒ 1 + 6 = 7

25 ⇒ 2 + 5 = 7

34 ⇒ 3 + 4 = 7

43 ⇒ 4 + 3 = 7

52 ⇒ 5 + 2 = 7

61 ⇒ 6 + 1 = 7

70 ⇒ 7 + 0 = 7

A₄ = {16, 25, 34, 43, 52, 61, 70}