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Logical Reasoning
Mathematical Reasoning
Sum of 36 odd numbers is?
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- sum of 1st n odd no.s = 1+3+5+7+... = n^2
so, Sum of 1st 36 odd numbers = 36^2 = 1296 - 10 years agoHelpfull: Yes(25) No(2)
- Here n=36, and A.P = 1+3+5+7+....
so last term = a+(n-1)d= 1+(36-1)2=71
sum = 36/2(1+71)= 36*36 = 1296 - 10 years agoHelpfull: Yes(15) No(0)
- sum of a series..Ap..n/2(2a+(n-1)/d)...1276
- 10 years agoHelpfull: Yes(3) No(0)
- 36^2=36*36=1296
- 10 years agoHelpfull: Yes(1) No(0)
- even..coz sum of odd no of odd nos is odd and if they are in even numbers then even
- 10 years agoHelpfull: Yes(1) No(1)
- 1+3+5+7......
so it is A.P.
with a=1
n=32, d=2
sum of A.P is n/2(2a+(n-1)d)=1296 - 10 years agoHelpfull: Yes(1) No(0)
- n=36,
A.P = 1+3+5+7+....
last term = a+(n-1)d= 1+(36-1)2=71
sum = 36/2(1+71)= 36*36 = 1296.......... - 10 years agoHelpfull: Yes(1) No(0)
- oops...1296....
- 10 years agoHelpfull: Yes(0) No(0)
- sum of a series..Ap..n/2(2a+(n-1)/d)...1276
- 10 years agoHelpfull: Yes(0) No(0)
- ans will be 1296
- 10 years agoHelpfull: Yes(0) No(0)
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