bonjour exo 1 1/10455-9737=718 en plus
2/14233-9737=4496 en plus
3/en 2006 de 1990 à 2006 =2254 en plus
4/non tous en augmentation +718 +2254 +1130 +394
exo 2 5h06mn09s -3h51mn09s=4h66mn09s-3h51mn09s=1h15mn
marie 5h06mn09s-56mn=5h62mn09s donc 6h02mn09s
karine 5h06mn09s-0.17mn=5h62mn09s-0.17=5h45mn09s
4/ 6h37mn10s-3h51mn09s=5h97mn10s-3h51mn09s=2h46mn 01s