please help

a) Suppose, Grameenphone has 10 voice channels, each of 60Kbps. They use synchronous TDM to multiplex these channels. If a character at a time is multiplexed (a characters in each output slot), II. III. IV V VI. VII. VIII. Draw the first two output frames with arbitrary inputs. What is the size of an output frame in bits? What is the output frame rate? What is the duration of an output frame? What is the output data rate? Input bit duration? Output bit duration? Output slot duration