A company has two models of computers, model M and model N. Operating at a constant rate, a model M computer can complete a certain task in 24 minutes and a model N computer can complete the same task in 12 minutes. If the company used the same number of each model of computer to complete the task in 1 minute, how many model M computers were used?  Select
A) 3
B) 4
C) 5
D) 8
E) 6
Let's say 1 work is processing 24 gb of data.   Model M : 1 gb per min   Model N : 2 gb per min   Working together, 1 M and 1 N = 3 gb per min   So, 8 times as many computers would work at 18 gb per min.   So no. of M = 8   Answer is 8
<result>D</result>
A company has two models of computers, model M and model N. Operating at a constant rate, a model M computer can complete a certain task in 24 minutes and a model N computer can complete the same task in 12 minutes. If the company used the same number of each model of computer to complete the task in 1 minute, how many model M computers were used?