Reducing the amount of loops will cause a loss of strength, as the loops make the magnet stronger.
Answer:

Explanation:
Assuming the we have to find ratio maximum forces on the mass in each case
we know that in a spring mass system
F= Kx
K= spring constant
x= spring displacement
Case 1:

case 2:

therefore, 

Divide 14 by 6 and there is your answer with the unit of m