Question
A frog leaps across 28 lily pads which are of the same distance apart. It takes the frog 10 seconds to get from the thirteenth  lily pad to the fourteenth lily pad. How long does it take for the frog to leap from the seventh lily pad to the fourteenth lily pad?
4 m

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A frog leaps across 28 lily pads which are of the same distance apart. It takes the frog 10 seconds to get from the thirteenth  lily pad to the fourteenth lily pad. How long does it take for the frog to leap from the seventh lily pad to the fourteenth lily pad?