Sagot :
Bonjour,
a)
passagers:
10+12+18 = 40
10 ping pong -> 10/40 = 1/4
b)
C+G = 12+18 = 30
30/40 => 3/4
c)
nouveau compte:
40 + x
1/5 = 10/50
C+G+P = 4/5 = 40/50
Donc 10 nageurs
Bonjour,
a)
passagers:
10+12+18 = 40
10 ping pong -> 10/40 = 1/4
b)
C+G = 12+18 = 30
30/40 => 3/4
c)
nouveau compte:
40 + x
1/5 = 10/50
C+G+P = 4/5 = 40/50
Donc 10 nageurs