Answer
A) 3019
B) 7076
C) 23585
Work Step by Step
A) 128x1000= 128.000 bit per second 128000x10sn=1.280.000 bits
1.280.000/53*8=3019
B) 300*1000= 300.000 bit per second 300000x10sn=3.000.000 bits
3.000.000/53*8=7076
C) 1*10000.000= 1.000.000 bit per second 1.000.000x10sn=10.000.000 bits
10.000.000/53*8=23585