bitsat2009

this ques came in bitsat today in one of my frends paper

find out the next term

4,31,60,121....

i dun hav the options

yeah jus two of them 243 or 242

dunno wats the ans,.....

3 Answers

Is the answer 246

dunno....how ???

hey the answer is 246..

see from the 2nd no.
the difference from the successive powers of 2 is in A.P.

31 is 1 short of 32

60 is 4 short of 64

121 is 7 short of 128

and then "x" will be 10 short of 256

so x=246......

did u get my solution ?????????
I am not sure of my answer and solution..please tell me if there is any other solutions with explaination.

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