Answer: (E)
Question: There are different 15 circles. What is the number of the greatest possible points with which the circles intersect?
Options:
(A) 390
(B) 100
(C) 110
(D) 180
(E) 210
[CoT]: [Maximum points of intersection between n different circles = n*(n - 1) = 15*14 = 210]

Answer: (B)
Question: A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 18 sec
(B) 16 sec
(C) 76 sec
(D) 15 sec
(E) 17 sec
[CoT]: [Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 280 * 2/35 = 16 sec]

Answer: (D)
Question: What will come in place of the x in the following Number series? 2, 7, 32, 157, 782, x
Options:
(A) 3707
(B) 3790
(C) 3910
(D) 3907
(E) 3970
[CoT]: [2
2 x 5 - 3 = 7
7 x 5 - 3 = 32
32 x 5 - 3 = 157
157 x 5 - 3 = 782
782 x 5 - 3 = 3907]

Answer: (C)
Question:
Henry earns $120 a week from his job. His income increased and now makes $180 a week. What is the percent increase?
Options:
(A) 70%
(B) 60%
(C) 50%
(D) 40%
(E) 30%
[CoT]: [Increase = (60/120)*100 = (1/2)*100 = 50%.]