IBPS Government Jobs Exams Numerical Ability Probability

A bag contains 5 black balls, 6 red balls and 3 white balls. If two balls are picked at random what is the probability that either both are black or both are white in colour?
A) 3/7 B) 2/7 C) 3/14 D) 1/7 E) 5/14

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IBPS Other Question

What will come in place of question mark (?) in the given number series?
21, 32, 46, 69, 119, ?
A) 238 B) 274 C) 266 D) 250 E) 256 A boat can travel 4.2 km upstream in 14 min. If the respective ratio of speed of the boat in still water and speed of the steam is 7:1. How much time will the boat take to cover 17.6 km downstream?
A) 52 min B) 44 min C) 48 min D) 36 min E) 54 min