You can put this solution on YOUR website!
You should have units in physics questions.
Note, by the formula about accereation v^2 = 1/2 gH. You jump at the
same initial velocity either on the earth or on the moon.
Hence,the max height you can jump on a planet is inverse proportional
to g(the gravitional acc. constant )
So,the height you can jump on the moon is 6*2.3 = 13.8 meters (or ft ???)