printing machine A and printingmchine B print the same newspaper printout, but machine B prints half the rate of machine A. if each machine prodces 200 newspaper printout, and operate at different times fo a total of 4 hours, what is the rate of each printing machine? give the given, equation and solution.
Answers
Given : printing machine A and printingmchine B print the same newspaper printout, but machine B prints half the rate of machine
each machine prodces 200 newspaper printout, and operate at different times fo a total of 4 hours,
To Find : what is the rate of each printing machine?
Solution:
Let say machine A print new paper per hour = 2P
B prints half the rate of machine A.
=> B print new paper per hour = 2P/2 = P
Let say machine A run for T hrs
Then machine B runs for 4-T hrs
Total Newspaper printed by machine A = 2P * T = 200
=> PT = 100
Total Newspaper printed by machine A = P*(4 - T) = 200
4P - PT = 200
=> 4P - 100 = 200
=> 4P = 300
=> P = 75
=> 2P = 150
Machine A prints 150 news paper per hr
Machine B prints 75 news paper per hr
rate of each printing machine are 150 & 75 news papers per hr
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