%=percent
percent means parts out of 100
20%=20/100
'of' means multiply
20% of 100 units means
20/100 times 100 units=2000/100 units=20 units
The probability is 2/9 because there are 9 marbles and 2 marbles were pulled out. hope I helped XD
The answer is 120.............
Speed of trucks= x speed of trains =x-30 A loaded
D.........................................
