Salutare !
1 melc intr-un minut : 300 mm
1 buburuza intr-un minut : 300 x 3 = 900 mm
1 melc in 4 minute = 300 mm x 4 = 1200 mm
1 buburuza in 5 minute = 900 x 5 = 4500 mm
1 buburuza in 7 minute = 900 mm x 7 = 6300 mm
1 melc in 7 minute = 300 x 7 =2100 mm
#AlbertGaming