Question
A frog leaps across 20 lily pads which are of the same distance apart. It takes the frog 6 seconds to get from the first  lily pad to the fourth lily pad. How long does it take for the frog to leap from the eleventh lily pad to the eighteenth lily pad?
4 m

Click button first when a symbol is required. X

A frog leaps across 20 lily pads which are of the same distance apart. It takes the frog 6 seconds to get from the first  lily pad to the fourth lily pad. How long does it take for the frog to leap from the eleventh lily pad to the eighteenth lily pad?