Latest TCS Aptitude Question SOLUTION: 1,5,6,25 26,30,31,125,126,130,131.......find 157th term.

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(#M40012623) TCS question Keep an EYE

1,5,6,25 26,30,31,125,126,130,131.......find 157th term.

Asked In TCS anitha (11 years ago)

Unsolved Read Solution (5)

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Tanmay Singh  (11 years ago)

earlier ans was wrong....
ans is 78196
terms are working like
2^1th(term)=5^1 , 2^2th = 5^5 , 2^3th = 5^3 , 2^4 = 5^4 ... 2^7th(128th term) = 5^7 (78125).

and the inner series is working as +1,+4,+1,+4,+1 . . . between the powers of 5
so 158th = 128th + (14*4) + (15*1) = 78196

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chaitanya chinmoy singh  (11 years ago)

Thanx a lot to m4maths.....i got through the written round of tcs...and nw i'm placed in tcs....m4maths is really very helpful for clearing the apti round of tcs...as u all knw guys the apti round of tcs is some what tough to get through....i got 16 question out of 30 with the help of this site.....this m4maths can really helpful....hats off to m4maths....and ofcourse cheers...:):):)

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yamuna  (11 years ago)

((126*5*5+1)*5+1)*5+1
as we will get a 2 2^2 2^3 .... terms and the series is of the for 1*5=5 5+1=6 and 5*5=25 5*5+1=26...

Is this solution Helpfull? Yes | No (5)  

Sayooj O  (11 years ago)

78205

5^7+16*1+16*4

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Tanmay Singh  (11 years ago)

157th term = 78210

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