Question
A frog leaps across 10 lily pads which are of the same distance apart. It takes the frog 8 seconds to get from the fourth  lily pad to the eighth lily pad. How long does it take for the frog to leap from the eleventh lily pad to the fifteenth lily pad?
4 m

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A frog leaps across 10 lily pads which are of the same distance apart. It takes the frog 8 seconds to get from the fourth  lily pad to the eighth lily pad. How long does it take for the frog to leap from the eleventh lily pad to the fifteenth lily pad?