In 1985, 45 percent of a document storage capacity was availed by 630 banks. But in 1987, when the capacity was increased, number of banks rose by 82 using overall 25 percent of its new capacity. What was the minimum percent increase in storage capacity.

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In 1985, 45 percent of a document storage capacity was availed by 630 banks. But in 1987, when the capacity was increased, number of banks rose by 82 using overall 25 percent of its new capacity. What was the minimum percent increase in storage capacity.






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