Elitmus
Exam
Numerical Ability
Arithmetic
perfect square 36 = sum up to 1 - 8
perfect square 1225 = sum up to 1 - 49
The next perfect sqaure(n) and sum uo to 1 - x?
find (n) and (x)?
Read Solution (Total 8)
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- n=41616
x=288
sum of 288 term by A.P
41616 is the perfect square of 204
- 11 years agoHelpfull: Yes(11) No(3)
- hai
plz explain in detail.... - 11 years agoHelpfull: Yes(7) No(0)
- this cant be elitmus question bcoz u can easily find if options are known
- 11 years agoHelpfull: Yes(4) No(2)
- n = 41616 , x = 288
- 11 years agoHelpfull: Yes(3) No(11)
- We have to go from answer in this type of question.
As we know sum of number from 1 to n is given by sum=n(n+1)/2 and perfectSquare= n*n;
In the question we could have 4 options we could find by the result as
n*n and x(x+1)/2, if both gives same result then required answer is n and x. - 9 years agoHelpfull: Yes(2) No(0)
- how ????? plz xplain..............
- 11 years agoHelpfull: Yes(1) No(0)
- how?please explain properly!!
- 11 years agoHelpfull: Yes(0) No(0)
- are yar kaise kiya tumlog detail me bta bhai log...
- 9 years agoHelpfull: Yes(0) No(0)
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