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Numerical Ability
Sequence and Series
In the sequence 1, 2, 3, 3, 3, 4, 4, 4, 4, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 2, 2, 2, 2, 2, 2, ....., what is the 2926th term?
Read Solution (Total 4)
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- its 1,2,2,3,3,3,4,4,4,4,1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4,1,1,1,2,2,2,2,2,2,..
1,2,2,3,3,3,4,4,4,4 = 10 terms (1st series)
1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4 = 20 terms(2nd series)
1(3times),2(6times),3(9times),4(12times)= 30 terms(3rd series)
Sum of no. of terms= 10+20+30+...+10*n
=10(1+2+3+...+n)
=10*n(n+1)/2 < 2926 => n(n+1)< 585.2 => n less than 24
if n=24,Sum of no. of terms= 10+20+30+...+24*n= 10*24*25/2 = 3000
24th series = [1...(24times),2...(48times),3...(72times),4...(96times)]
i.e there are 96 4's before 3000th term
so, 2926th term =4
- 10 years agoHelpfull: Yes(27) No(0)
- its 1,2,2,3,3,3,4,4,4,4,1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4,1,1,1,2,2,2,2,2,2,..
1,2,2,3,3,3,4,4,4,4 = 10 terms (1st series)
1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4 = 20 terms(2nd series)
1(3times),2(6times),3(9times),4(12times)= 30 terms(3rd series)
Sum of no. of terms= 10+20+30+...+10*n
=10(1+2+3+...+n)
=10*n(n+1)/2 < 2926 => n(n+1)< 585.2 => n - 10 years agoHelpfull: Yes(2) No(2)
- ans.4
1,2,2,3,3,3,4,4,4,4=10 terms
1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4=20 terms
10+20+30+............ - 10 years agoHelpfull: Yes(1) No(1)
- 1st series is=10
2nd=20
3rd=30.....
n(n+1)/2*10
assume to take n=23(nearest of 2926th term)
so,the value=2760.(where n=23)
remaining is 166(2926-2760)
after this i cant solve pls send the valuable solution for this question.the ans for this is 1. - 6 years agoHelpfull: Yes(1) No(1)
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