Option 2 : 80 kg

**GIVEN:**

Ajay, Atul, and Anurag's average = 74 kg

Anurag,s weight = 9 + Ajay's = 6 + Atul's

Ashu's weight = 19 + Anurag's

**FORMULA USED:**

Average = Sum of observations/Total number of observations

**CALCULATION:**

Let Anurag's weight be x kg.

Ajay's weight = x - 9

Atul's weight = x - 6

A.T.Q

x + x - 9 + x - 6 = 74 × 3

⇒ 3x = 237 kg

⇒ x = 79 kg

Ashu's weight = 79 + 19 = 98 kg

Avaerage = (222 + 98)/4 = 80 kg

**∴ Average weight is 80 kg.**