# Willy the worm is on top of the well 6 meters high and Sonny the snail is at the bottom. Willy descends 50 cm each day and turns back 20 cm at night. Sonny climbs 100 cm at daytime and slips back 50 cm at night time. How long will it take the two to meet if they start their journey at the same time? Where will they meet?

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