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Calculate how far a froge can leap if the leap length doubles every jump, starting from 2 cm. How many jumps to reach or exceed 1 km?
If you saw 100 froges and each froge saw 10 other distinct froges, how many froges were there in total?
A froge wants to cross a river and can only jump on lily pads which are spaced 3 cm apart. If the river is 30 cm wide, how many jumps does the froge need?