M4maths
Maths Puzzle
Logical Reasoning
Number Series
Lets Ram give 1st student 1 candy 2nd student 8 candy 3rd student 27 candy . So how many candy will be given to 17 th student .
Read Solution (Total 6)
-
- it is just cubing i.e,
1^3
2^3
3^3
.
.
.
17^3---------4913
so answer is 4913 candys - 8 years agoHelpfull: Yes(4) No(0)
- 17^3=4913
- 8 years agoHelpfull: Yes(1) No(0)
- 1st student =1 candy= 1^3
2nd student= 2^3= 8 candy
3rd student=3^3=27 candy
like that
17th student = 17^17= 4913 candy
4913 - 7 years agoHelpfull: Yes(1) No(0)
- Ans: 23409
Sum of the cubes of n natural number=1^3+2^3+...+ n^3 = [ n (n+1)/2]^2
So for n=17, [17(17+1)/2]^2=153^3= 23409 - 8 years agoHelpfull: Yes(0) No(1)
- 1^3,2^3......upto 17^3, so the ans is 289
- 8 years agoHelpfull: Yes(0) No(1)
- 4913
i.e 17^3 - 6 years agoHelpfull: Yes(0) No(0)
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