[Ques]: What should come in place of the question mark (?) in the following equation?
12400 + 6899 = 610+ ?
Options:
(A) 12345
(B) 56894
(C) 18689
(D) 23478
(E) 94561
*Ans*: (C)
--CoT--: 12400 + 6899 = 610+ ?
12400 + 6899 610 = 18689

[Ques]: A man pointing to a photo says "The lady in the photograph is my nephew's maternal grandmother". How is the lady in the photograph related to the man's sister who has no other sister ?
Options:
(A) Cousin
(B) Sister-in-law
(C) Mother
(D) Mother-in-law
(E) None of these
*Ans*: (C)
--CoT--: Since the man is referring to his nephew, the nephew's parent has to be a sibling to the man. Now the last part says that the man's sister has no other sister and hence the brother-sister relationship is established between the man and his nephew's mother. Now the lady in the picture is the grandmother of the nephew and hence she is the mother of the man's sister.

[Ques]: How much 60% of 50 is greater than 30% of 30?
Options:
(A) 21
(B) 91
(C) 11
(D) 17
(E) 12
*Ans*: (A)
--CoT--: (60/100) * 50 (30/100) * 30
30 - 9 = 21

[Ques]: what is the next no. 4 12 84
Options:
(A) 632
(B) 732
(C) 832
(D) 850
(E) 902
*Ans*: (B)
--CoT--: 3^0 + 3 = 4
3^2 + 3 = 12
3^4 + 3 = 84
3^6 + 3 = 732