Question
A frog leaps across 14 lily pads which are of the same distance apart. It takes the frog 10 seconds to get from the fifth  lily pad to the fifteenth lily pad. How long does it take for the frog to leap from the sixth lily pad to the twentieth lily pad?
4 m

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A frog leaps across 14 lily pads which are of the same distance apart. It takes the frog 10 seconds to get from the fifth  lily pad to the fifteenth lily pad. How long does it take for the frog to leap from the sixth lily pad to the twentieth lily pad?