Latest Infosys Aptitude Question SOLUTION: Next Number In The Series Is 1, 2, 4, 13, 31, 112,?

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Next Number In The Series Is 1, 2, 4, 13, 31, 112,?

Solution

Base 5 means
to use 1,2,3,4,5 only for finding numbers ,in this manner numbers will be
1,2,3,4,5,11,12,13,14,15,21,22,23,24,25,31,32,33,34,35,41,42,43,44,45,51,52,53,54,55,111,112,113,114,115,121,122,123,124,125,.......

This series is written in base 5 numbers for decimal numbers 1,2,4,8,16,32,64
so next number is 224 .
224 in base 5 = 64 in base 10.
This answer is given by DIPIN and is correct answer

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Asked In Infosys sairam bandaru (12 years ago)

Solved Read Solution (7)

Is this Puzzle helpful?   (12)   (7) Submit Your Solution

Read Solution (7) :

kiran kumar reddy  (12 years ago)

The Given Series is 1,2,4,13,31,112,...

Actually the series is 1,2,4,8,16,32,....

it means ......

5 | 8
----
1 - 3


5 | 16
-----
3 - 1


5 | 32
-----
5 | 6 - 2
----
1 - 1


5 | 64
----
5 | 12 - 4
----
2 - 2

So this series going like.. 1, 2, 4, 13, 31, 112, 224, 1003,.....

Read more: http://wiki.answers.com/Q/What_is_the_next_number_in_this_series_1_2_4_13_31_112#ixzz1cymFXwJ3

Is this solution Helpfull? Yes (11) | No (6)  

Dr.Dipin Singh  (12 years ago)

1, 2, 4, 13, 31, 112,?

This series is written in base 5 numbers for decimal nos of 1,2,4,8,`6,32,64

so next number is 224 .
224 in base 5 = 64 in base 10.

so 224 is next number.

Is this solution Helpfull? Yes (6) | No (5)  

Debashis Dey  (12 years ago)

224 is the next number......actual series is 1,2,4,8,16,32....but the numbers after 4 is converted to the numbers of base 5.....so actually the number will be 64 which when converted to base of 5 gives 224.

Is this solution Helpfull? Yes (3) | No (5)  

yuvaraja  (12 years ago)

diff btwn 1&2=1,2&4=2,4&13=9,13&31=18,31&112=81,112&274=162.
nxt no is 274

Is this solution Helpfull? Yes (1) | No (2)  

Narendra Reddy  (12 years ago)

274
diff b/w them is 1,2,9,18,81,162
162+112=274

Is this solution Helpfull? Yes (1) | No (2)  

kaykash  (12 years ago)

actually the series is 1,2,4,8,16,32,64..
13base5=8base10
31base5=16base10
112base5=32base 10
64base10=224base5

Is this solution Helpfull? Yes | No   

neelanshi  (9 years ago)

292 will be the next numbere

Is this solution Helpfull? Yes | No   

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