SSC CGL 2022 PYQ — Question 71

The correct answer is option 4 i.e. -378000.

Explanation:

From the given question,

⇒ 70³ = 343000

⇒ 20³ = 8000

⇒ 90³ = 729000

Thus, 70³ + 20³ - 90³ = 343000 + 8000 - 729000 = - 378000

Hence the value of 70³ + 20³ - 90³ is - 378000