Reasoning: Number of ways = 61/21 6X5X4X3X2X1 - 360
Ans: (E)
Question: In how many different ways can the letters of the word 'PREPTY' be arranged?
Options:
(A) 160
(B) 190
(C) 210
(D) 368
(E) 360

Reasoning: The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.
Ans: (B)
Question: 8, 27, 64, 100, 125, 216, 343
Options:
(A) 40
(B) 100
(C) 290
(D) 102
(E) 293

Reasoning: Speed upstream = 16/4 = 4 kmph
Speed down stream = 24/4 = 6 kmph
Speed of stream = (6-4) = 1 kmph
Ans: (A)
Question: If athul rows 16 km upstream and 24 km down steam taking 4 hours each, then the speed of the stream
Options:
(A) 1kmph
(B) 2 kmph
(C) 1.5 kmph
(D) 12 kmph
(E) 15 kmph

Reasoning: S = (200 + 300)/45 = 500/45 * 18/5 = 40
Ans: (D)
Question: A train 200 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?
Options:
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50