Maths
Maths Puzzle
Numerical Ability
Sequence and Series
-1,2,15,44,95,?
Read Solution (Total 6)
-
- 174
n^3 - (n*(n+1))
1^3 - (1*2) = 1-2 = -1
2^3 - (2*3) = 8-6 = 2
3^3 - (3*4) = 27-12 = 15
4^3 - (4*5) = 64-20 = 44
5^3 - (5*6) = 125-30 = 95
6^3 - (6*7) = 216-42 = 174
- 10 years agoHelpfull: Yes(3) No(0)
- 174
n^3 - (n*(n+1))
1^3 - (1*2) = 1-2 = -1
8^3 - (2*3) = 8-6 = 2
3^3 - (3*4) = 27-12 = 15
4^3 - (4*5) = 64-20 = 44
5^3 - (5*6) = 125-30 = 95
6^3 - (6*7) = 216-42 = 174
- 10 years agoHelpfull: Yes(0) No(1)
- ans=174
a(n) = n^3 - n^2 - n
a(1) = -1
a(2) = 2
.
.
a(6) = 176 - 10 years agoHelpfull: Yes(0) No(0)
- answer will be 176
-1 2 15 44 95 --
1st 1 13 29 51 --
2nd 12 16 22 --
3rd 4 6 --
now see form last in 3rd blank no will be 8
2nd will be 22+8=30
1st will be 51+30=176 - 10 years agoHelpfull: Yes(0) No(0)
- sorry......
1st will be 51+30=81
abd answer is 81+95=176 - 10 years agoHelpfull: Yes(0) No(0)
- 1^1-(1*2)=-1
2^2-(2*3) =2
3^3-(3*4) =15
4^4-(4*5)=44
5^5-(5*6)=95
6^6-(6*7)=174 - 10 years agoHelpfull: Yes(0) No(0)
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