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Numerical Ability
sum of 44,42,40...?
Read Solution (Total 2)
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- 44-2
42-2
40-2=38
- 10 years agoHelpfull: Yes(0) No(0)
- this is in decreasing order as
a+(a+d)+(a+2d)+.........+(a+nd)
44+42+40+............+0
a+nd=0,so n=22
sn=n/2(2a+(n-1)d)=506
- 10 years agoHelpfull: Yes(0) No(0)
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