# Mathematical Reasoning MCQ - Mathematical Reasoning

1:

1,2,3,1,4,9,1,...27

 A. 5 B. 4 C. 16 D. 8 Answer Report Discuss Option: D Explanation : 1,2,3,12,22,32,13,23,33 Click on Discuss to view users comments. p k naha said: (3:59am on Thursday 25th April 2013) how the answer 8 comes? geeta said: (8:27am on Thursday 16th May 2013) how the answer 8 comes rahul said: (5:35am on Tuesday 4th June 2013) first 3(1,2,3) is simple no.2nd three(1,4,9) is square of 1,2, rahul said: (5:35am on Tuesday 4th June 2013) first 3(1,2,3) is simple no.2nd three(1,4,9) is square of 1,2, Arun said: (9:12am on Thursday 13th June 2013) Boss answer is 16 not 8 aswini said: (5:39am on Tuesday 4th March 2014) Answer is 8 saroj said: (4:23am on Thursday 22nd September 2016) 8 Write your comments here:
2:

3,5, 9,17,33

 A. 44 B. 65 C. 64 D. 49 Answer Report Discuss Option: B Explanation : The difference between the two con- secutive terms are doubling, i.e., 2, 4,8, 16, 32. Thus 33 + 32 = 65. Click on Discuss to view users comments. Diamond said: (6:17pm on Wednesday 15th November 2017) 3 2=5, 5 4=9, 9 8=17, 17 16=33, So since it is doubling I did 33 32 and that equals 65 Write your comments here:
3:

6,5,24,25,144,(?)

 A. 155 B. 160 C. 170 D. 175 Answer Report Discuss Option: D Explanation : IIIrd term is=Ist termx4,i.e.,6x4=24 IVth term is =IInd term x 5,i.e,5x5=25 Vth term is = IVth termx7,i.e.,25x7=175 Multipliers are in the increasing order of 4,5,6,7, etc Click on Discuss to view users comments. tejinder said: (2:26am on Sunday 8th September 2013) answer is right but explanation is wrong because 6th term=4th*7 not 5th term Write your comments here:
4:

128,64,32...?

 A. 33 B. 35 C. 45 D. 16 Answer Report Discuss Option: D Explanation : 16*2=32,     32*2=64,         64*2=128 Now in reverse 128/2=64,         64/2=32      so 32/2=16 Click on Discuss to view users comments. PK said: (1:26am on Saturday 16th February 2013) 16*2=32,32*2=64,64*2=128 now in reverse 128/2=64,64/2=32 so 32/2=6 Write your comments here:
5:

A.

B.
C.
D.

Option: A

Explanation :

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