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EEJ MAIN Aptitude QUESTION #10996
Question 1
A cube of side $2$ units has a smaller cube of side $1$ unit removed from one corner. What is the surface area of the remaining solid?
  • $24$✔️
  • $26$
  • $28$
  • $30$
Correct Answer Explanation
Original surface area = $6 \times 4 = 24$. Removing a corner cube exposes 3 new faces of area $1$ each, but removes 3 existing faces of area $1$ each. Net change = $0$. So surface area remains $24$.