Question
A frog leaps across 24 lily pads which are of the same distance apart. It takes the frog 11 seconds to get from the second  lily pad to the thirteenth lily pad. How long does it take for the frog to leap from the seventh lily pad to the twentieth lily pad?
4 m

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A frog leaps across 24 lily pads which are of the same distance apart. It takes the frog 11 seconds to get from the second  lily pad to the thirteenth lily pad. How long does it take for the frog to leap from the seventh lily pad to the twentieth lily pad?