SSC CGL 2025 PYQ — Question 60

The correct answer is option 3 i.e. 60.

Average of x and y = 30

⇒ $x + y\over2$ = 30

⇒ x + y = 60

Average of x, y, z = 40

⇒ $x + y + z\over3$ = 40

⇒ x + y + z = 120

⇒ 60 + z = 120

⇒ z = 60

Now, average of x, y, 2z:

⇒ $x + y + 2z\over3$ = $60 + 120\over3$ = $180\over3$ = 60