Posted by
**Anonymous** on
.

For an A.P.

sum of 2n terms = 3* sum of n terms

then

sum of 3n terms : sum of n terms = ?

Friday

March 24, 2017
Posted by
**Anonymous** on
.

For an A.P.

sum of 2n terms = 3* sum of n terms

then

sum of 3n terms : sum of n terms = ?

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