This question was previously asked in

CTET Nov 2012 Paper - 2 Maths & Science (L - I/II: Hindi/English/Sanskrit)

Option 3 : 77

**Given:**

a3 = 1 + 7

33 = 1 + 7 + b

43 = 1 + 7 + c

**Calculations:**

Solving the given terms,

Solving for a,

⇒ a3 = 1 + 7

⇒ a3 = 8

⇒ a = 2

Solving for b,

⇒ 33 = 1 + 7 + b

⇒ 27 = 8 + b

⇒ b = 19

Solving for c,

⇒ 43 = 1 + 7 + c

⇒ 64 = 8 + c

⇒ c = 56

The sum of a, b and c = 2 + 19 + 56

⇒ 77

**∴ The value of a + b + c is 77**