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What is the next number in this series 1 2 4 13 31 112?

ans is 224..! can anyone explain me logic.! :)

Read Solution (Total 2)

answer is 224 .. the logic is
we convert number to base 5 ie(13)base 5 is 31 then (31) base 5 na is 112 then (112)base 5 is 224

this is logic of this series :)
12 years agoHelpfull: Yes(6) No(2)

1 2 4 13 31 112 X
actual series 1 2 4 8 16 32 64
64/5-4
12/5-2
2
224 ans
12 years agoHelpfull: Yes(1) No(10)

TCS Other Question

1,2,4,13,31,112,? sandra while walking diametrically across a semicircular playground, takes 3mins less than if she had kept walking around the circular path from A to B. if she walks 60 metres a minute , what is the diameter of the playground?