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If a(1),a(2),.........,...,a(24) are in ...

If `a_(1),a_(2),.........,...,a_(24)` are in `A.P` and `a_(1)+a_(5)+a_(10)+a_(15)+a_(20)+a_(24)=225,` then `a_(1)+a_(2)+a_(3)+.........+a_(24)=`

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