Answer: B) Father = 40; Son =24 Explanation: Let the present age of the man be 'P' and son be 'Q',Given, P + Q = 64 or Q = (64 - P)Now the man says "I am five times as old as you were, when I was as old as you are",So, P = 5[B - (P - Q)]We get 6P = 10Q,Substitute value for Q,6P = 10(64 - P),Therefore P = 40, Q = 24.

Answer: B) 165 Explanation: The terms of the series are products of two consecutive prime numbers i.e. (2 x 3), (3 x 5), (5 x 7), (7 x 11),..... So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.

Answer: C) 51 min Explanation: The work to be done = Capacity of reservoir  = 30 litres.  1st Minute ---> inlet pipe opened ---> 5 lit filled  2nd minute ---> inlet pipe closed; outlet pipe opened ---> 4 lit emptied   In 2 minutes (5 litres - 4 litres = 1lit) is filled into the reservoir. It takes 2 minutes to fill 1lit ---> it takes 50 minutes to fill 25 litres into the reservoir.     In the 51st minute inlet pipe is opened and the reservoir is filled.

Answer: A) G & H , H Explanation: From the directions given :  From the fig. it is clear that  1) neighbours of B are G , H. 2) E is facing H.

Answer: C) Analyze Explanation: When you develop a product, you assess its performance for proper functioning. Similarly, when you train a person to do a job, you analyze his/her performance to understand how good he/she is at it.   Hence, Develop : Assess :: Train : Analyze.

Answer: B) Honorary Explanation: The One-word substitute for 'a post without remuneration' is Honorary.

Answer: B) 14 men Explanation: M x T / W = Constantwhere, M= Men (no. of men)T= Time takenW= Work loadSo, here we applyM1 x T1/ W1 = M2 x T2 / W2Given that, M1 = 4 men, T1 = 7 hours ; T2 = 2 hours, we have to find M2 =?Note that here, W1 = W2 = 1 road, ie. equal work load.Clearly, substituting in the above equation we get, M2 = 14 men.

Answer: C) 4.18 Explanation: Distance to be covered = πD = 40π km  Relative speed of bikers = 16 + 14 = 30 kmph.   Now, time=distancespeed =  40π30 = 4.18 hrs.