Q$.1$

$10$ Points

Using a gravity model with an impedance term of the form $t^{-2\mathrm{.}1},$ estimate the number of Trips attracted to zone $4$ from all other zones.

$\backslash$table$[[$Zone$,\backslash$table$[[$Travel time to$],[$zone $4,$ min$]],$Productions,Attractions$],[1,12,12,000,20,000],[2,20,20,000,10,000],[3,10,25,000,18,000],[4,,22,000,30,000],[5,25,40,000,15,000],[6,15,30,000,20,000]]$