Answer: D) 6 Explanation: Let us assume Amount be 100 Rs and we calculate in CI  First year 60% of 100 = 60 amount (100+60) is 160  Second year 60% of 160 = 96 amount (160+96) is 256  Third year 60% of 256 =153.6 amount (256+153.6) is 409.6  Here the Amount of 100 Rs is quadrapled in 3 years.  One year contains 2 half years  Three year has 6 half years.  Therefore,  It takes 6 half years.

Answer: D) 50 % Explanation: Let the cost price be x and selling price be y.Loss = x – y   When the cost price doubles, the loss gets tripled.So it becomes like this, 2x – y = 3(x-y) => x = 2y   Loss % = (loss/ C.P) x 100 = [(2y-y)/2y] x 100= 50 %

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.

Answer: D) 27404 Explanation: Given total 16 Red roses and 14 White roses = 30 roses   Four flowers have to be selected from 30 i.e,  C430= 27405 Ways    Now, atleast one Red rose is selected i.e, 27405(total) - 1(all four are white roses)  = 27404 ways.

Answer: B) 1.2040 Explanation: Given that, log 64 = 1.8061  i.e log43=1.8061  --> 3 log 4 = 1.8061 --> log 4 = 0.6020 --> 2 log 4 = 1.2040 ⇒log42=1.2040 Therefore, log 16 = 1.2040

Answer: B) T Explanation: R is the sister of U     Q is the brother of T’s Husband     S is the father of P and Grandfather of U     Grouping all the clues     Two fathers     :  P,S   Three brothers : Q&P are brothers.U should be male and the brother of R   T is the mother

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) 3 Explanation: When 16nis divided by 9, we have  1619, remainder = 7   1629, remainder = 4  1639, remainder = 1  1649, remainder = 7  1659, remainder = 4  1669, remainder = 1  So, we have cyclicity of 3 factors i.e 7,4,1.  Hence only 3 remainders are possible.