Question
A frog leaps across 22 lily pads which are of the same distance apart. It takes the frog 20 seconds to get from the fifth  lily pad to the tenth lily pad. How long does it take for the frog to leap from the twelfth lily pad to the seventeenth lily pad?
4 m

Click button first when a symbol is required. X

A frog leaps across 22 lily pads which are of the same distance apart. It takes the frog 20 seconds to get from the fifth  lily pad to the tenth lily pad. How long does it take for the frog to leap from the twelfth lily pad to the seventeenth lily pad?