Answer:
So 400 stamps
African---> 100
Indian------> 1/10 x 400
= 40
European---> 400-40=360
1/3 x 360
= 120
so 120+40+100= 260
400-260
= 140 stams from US
0.56
Step-by-step explanation:
14 divided by 25 is 0.56
0.06
probability of multiple of 6= 0.2
probability of multiple of 4= 0.3
0.2 * 0.3 = 0.06