The sum of n terms of two AP are in the ratio (7n-5):(5n+17). Show that their 6th terms are equal.

The sum of n terms of two AP are in the ratio (7n-5):(5n+17). Show tha

1.	The sum of n terms of two AP are in the ratio (7n-5):(5n+17). Show that their 6th terms are equal.
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