Bonsoir,
1)
debout: n
assis: 1 500 -n
25 n+ 40(1500 -n)
2a)
25n + 60 000- 40n
2b)
25n + 60 000- 40n = 45 000
60 000 - 45 000 = 40n - 25n
15 000 = 15n
n = 15 000/15
=> 1 000 places assises
