# Harvest time

Grandma and granddaughter Julka reap currants in 15 hours of working together. Julka herself would have currants 10 days after 6 hours of work a day.

Find by what percentage the grandma's harvest time was shortened when the granddaughter was involved in current harvesting.

Find by what percentage the grandma's harvest time was shortened when the granddaughter was involved in current harvesting.

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