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Maths Puzzle
1=2
2=10
3=30
4=68
5=?
Read Solution (Total 10)
-
- 130
5= 5^3+5=125+5=130
as 1=1^3+1
2= 2^3+2=8
..
4=4^3+4=68
5^3+5=125+5=130 - 11 years agoHelpfull: Yes(12) No(2)
- Ans=130
Series of (n^2+1)n, so (5^2+1)5=130 - 11 years agoHelpfull: Yes(7) No(1)
- 1+1^3=2
2+2^3=10
3+3^3=30
4+4^3=68
5+5^3=130 - 11 years agoHelpfull: Yes(6) No(4)
- Ans: 140
1*2=2, 2*5=10, 3*10=30, 4*17=68, 5*28=140
|______|________|________|________|
| | | |
3-------5--------7--------11------These are prime nos.
- 11 years agoHelpfull: Yes(1) No(1)
- ans=130
reason=in the first 1=2 as 1*2=2
in second 2=10 as 2*5=10
in third 3=30 as 3*10=30
1n forth 4=68 as 4*17=68
in this we see the multiplied part of 1,2,3,4
it is 2,5,10,17
2+3=5
5+5=10
10+7=17
we see added part of 2,5,10
it is 3,5,7 it is odd series next number will be 9
so 17+9=26
now to get the answer
1n fifth case we multiply 5 by 26
we get the answer as 130 - 11 years agoHelpfull: Yes(0) No(0)
- Ans: 140
1*2=2, 2*5=10, 3*10=30, 4*17=68, 5*28=140
|_____|_______|_______|_______|
| | | |
3---------5-------7------11---------------These are prime nos.
- 11 years agoHelpfull: Yes(0) No(0)
- 1=1+1^3=2
Ans:130
2=2+2^3=10
3=3+3^3=30
4=4+4^3=68
5=5+5^3=130 - 11 years agoHelpfull: Yes(0) No(0)
- 1*1^2+1=2
2*2^2+2=10
3*3^2+3=30
4*4^2+4=68
5*5^2+5=130 - 11 years agoHelpfull: Yes(0) No(0)
- 1+1^3=2;2+2^3=10;3+3^3=30;4+4^3=68;5+5^3=130.... so the answer is 5=130
- 11 years agoHelpfull: Yes(0) No(0)
- 1+(1^3)=2
2+(2^3)=10
3+(3^3)=30
4+(4^3)=68
5+(5^3)=130 - 10 years agoHelpfull: Yes(0) No(0)
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