Respuesta :

(1/6) / (1/12) = 1/x....1/6 pg to 1/12 min = 1 pg to x min
cross multiply
(1/6)(x) = (1/12)(1)
1/6x = 1/12.....multiply by 6, cancelling out the 1/6 on the left side
x = 1/12 * 6
x = 6/12 reduces to 1/2 min <===
I think its 7 hours and a half (30 minutes)