Question
A frog leaps across 21 lily pads which are of the same distance apart. It takes the frog 6 seconds to get from the fifth  lily pad to the seventh lily pad. How long does it take for the frog to leap from the eighteenth lily pad to the nineteenth lily pad?
4 m

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A frog leaps across 21 lily pads which are of the same distance apart. It takes the frog 6 seconds to get from the fifth  lily pad to the seventh lily pad. How long does it take for the frog to leap from the eighteenth lily pad to the nineteenth lily pad?