Gate
Exam
Logical Reasoning
Direction Sense
What will be the maximum sum of 44, 42, 40, ... ?
Option
(A) 502
(B) 504
(C) 506
(D) 500
Read Solution (Total 4)
-
- 44, 42, 40, ...
maxm sum will be upto 44, 42, 40, ...,4,2,0 bcoz after 0 there are -ve terms
44, 42, 40, ...,4,2,0
series is AP , a=44,l=0,d=-2,n=23
sum=23/2 *(44+0)=23*22=506
(C) 506 - 10 years agoHelpfull: Yes(4) No(0)
- 44+42+....+4+2=2(1+2+...+21+22)=2*(n(n+1)/2)=2*(22*23)/2=506(Option C)
- 10 years agoHelpfull: Yes(2) No(0)
- 506- option c
- 10 years agoHelpfull: Yes(1) No(0)
- 506
last term=0
0=44+(n-1)*(-2)=>n=23
sum=23*(44+0)/2 - 10 years agoHelpfull: Yes(1) No(0)
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