[Ans] (C)
[Question] The average of Suresh’s marks in English and History is 55. His average of marks in English and Science is 65. What is the difference between the marks which he obtained in History and Science?
Options:
(A) 40
(B) 60
(C) 20
(D) Data inadequate
(E) None of the above
[CoT] E + H = (55 × 2) = 110;
E + S = (65 × 2) = 130
∴ Reqd difference = 130 – 110 = 20

[Ans] (C)
[Question] Given 3 lines in the plane such that the points of intersection form a triangle with sides of length 20, 20 and 30, the number of points equidistant from all the 3 lines is
Options:
(A) 1
(B) 3
(C) 4
(D) 0
(E) 2
[CoT] 4 points are possible in which 1 point is the incentre of the circle and other 3 are excentres

[Ans] (A)
[Question]

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Find the odd man out
74, 24, 82, 61, 10, 4
Options:
(A) 61
(B) 24
(C) 10
(D) 82
(E) 74
[CoT] 61 is the only odd number in the series.