12,17,120,153
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Sreekanth P Krishnana
Answered On : Apr 17th, 2006
the ans is 238.
3*77+7
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vaishali
Answered On : May 2nd, 2006
hi;
Ans is:
2*3+1=7
7*3+3=24
24*3+5=77
77*3+7=238
Therefore ans is 238
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hema
Answered On : May 2nd, 2006
2,7,24,77,...2*12=247*11=7724*10=240ANS= 240
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muthu
Answered On : Jun 22nd, 2006
2*12=24 7*11=77 24*12=288 so according to my view i feel 288 is the answer
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KARUNAKAR
Answered On : Jun 6th, 2007
3*2=6+1=7;
Similarly 3*77=231+7=238
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amit kumar verma
Answered On : Jun 18th, 2007
the ans of series 2,7,24,77,.... should be 238
reason:
multiplied by 3 & adding 1,3,5,7,........
i.e
2 x 3= 6 + 1 = 7
7 x 3 = 21 + 3 = 24
24 x 3 = 72 + 5 = 77
77 x 3 = 231 + 7 = 238
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the ans will be 240 or 238
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Its simple.. Its 238.
steps:
(2*3)+1=7
(7*3)+3=24
(24*3)+5=77
(77*3)+7=238
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bangers
Answered On : Jan 1st, 2011
Ans is 238 but the reason is
the seq is 3^X-X
i.e 3 (raisedto) 1 -1=2
3 (raisedto) 2 -2=7
3 (raisedto) 3 -3=24
3 (raisedto) 4 -4=77
proceeding we get 238
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series work like dat
2*1+0=2
2*3+1=7
7*3+3=24
24*3+5=77
77*3+7=238
every new digit is d 3 multiple of previous find digit +an odd no. sum in it
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alok
Answered On : Sep 16th, 2011
split into 2 series..
2,24..
7,77...
now ,if we look...2 x 12^0=2, 2 x 12^1 = 24 , 2 x 12^2 = 288
and for the second series 7 x 11^0= 11, 7 x 11^1=77.....so on,.
so the answer is 288.
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Maheshwari
Answered On : Sep 16th, 2011
46,147
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238
times 3 plus 1
times 3 plus 3
times 3 plus 5 .. pattern shows that next number is
times 3 plus 7 => 3.77+7= 238
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vinayak gupta
Answered On : Sep 18th, 2011
2, 7, 24, 77, 236, 708, .....
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Jinal
Answered On : Sep 19th, 2011
238
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vaibhav
Answered On : Sep 20th, 2011
178
2,7,24,77
7-2=5
24-7=17=12+5
77-24=53=24+17
178-77=101=48+53
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Shalini gupta
Answered On : Oct 7th, 2011
2,7,24,77,128 and so on
Description:-
2*3+1=7
7*3+3=24
24*3+5=77
77*3+7=228 and so on and here 1,3,5,7 are in G.p.
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vandhana
Answered On : Oct 7th, 2011
238
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manikandan
Answered On : Oct 8th, 2011
2*3+1=7
7*3+3=24
24*3+5=77
77*3+7=238
Therefore ans is 238
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sudheer
Answered On : Oct 8th, 2011
190
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Ashwini kanmande
Answered On : Oct 9th, 2011
238
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RAKESH SHARMA
Answered On : Jan 29th, 2012
step 1--> 3*1-1=2
step 2--> 3*2-2=7
step 3--> 3*3-3=24
step 4--> 3*4-4=77
step 5--> 3*5-5=238
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lakshmiram
Answered On : Feb 5th, 2012
2*3+1=7,7*3+3=24,24*3+5=77,77*3+7=238
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