One computer can upload 120 megabytes worth of data in 6 seconds. Two computers, including this one, working together, can upload 1300 megabytes worth of data in 42 seconds. How long would it take for the second computer, working on its own, to upload 120 megabytes of data?
Select the correct option:
A) 6	B) 7	C) 9.13	D) 11	E) 13
Since the first computer can upload 120 megabytes worth of data in 6 seconds then in   6*7= 
<gadget id="calculator">  6*7</gadget>
<output>42</output>
42 seconds it can upload   7*120= 
<gadget id="calculator">  7*120</gadget>
<output>840</output>
840 megabytes worth of data, hence the second compute in 42 seconds uploads   1300-840= 
<gadget id="calculator">  1300-840</gadget>
<output>460</output>
460 megabytes worth of data. The second computer can upload 120 megabytes of data in 9.13 seconds.   Answer: 9.13.
<result>C</result>
One computer can upload 120 megabytes worth of data in 6 seconds. Two computers, including this one, working together, can upload 1300 megabytes worth of data in 42 seconds. How long would it take for the second computer, working on its own, to upload 120 megabytes of data?