[Ans] (E)
[Question] Solve:-
222 x 222 x 222 + 555 x 555 x 555 = ?(222 x 222 - 222 x 555 + 555 x 555)
Options:
(A) 888
(B) 333
(C) 555
(D) 988
(E) 777
[CoT] Given Exp. = (a3 + b3) = (a + b) = (222 + 555) = 777(a2 - ab + b2)

[Ans] (C)
[Question] 5,9,16,28,48,__
Options:
(A) 79
(B) 80
(C) 81
(D) 82
(E) 83
[CoT] (9+5) +2 = 16
(16+9) +3 = 28
(28+16)+4 = 48
(48+28)+5 = 81

[Ans] (E)
[Question]
The edge of a cube is 7a cm. Find its surface?
Options:
(A) 24a8
(B) 24a4
(C) 24a1
(D) 24a2
(E) 294a2
[CoT] 6a2 = 6 * 7a * 7a = 294a2