Machine M processes a certain chemical product at a constant rate. Does machine M process the product at a rate that is greater than 25 grams per second= (1 kilogram = 1000 grams)?
(1) Machine M processes the product at a rate that is greater than 92 kilograms per hour
(2) Machine M processes the product at a rate that is less than 95 kilograms per hour
Does machine M process the product at a rate that is greater than 25 grams per second= (1 kilogram = 1000 grams)?
As we can see that answer choices are in kilograms per hour. BUT the question is in grams per second.
So , 25 *(grams/second)= 25 *(3600/1000) kilograms per hour 1 gm=(1/1000) kilograms ; 1 sec=(1/3600) hour
25 *(grams/second)=90 kilograms per hour1) Machine M processes the product at a rate that is greater than 92 kilograms per hour
Always True, M process the product at a rate that is greater than 90 kilograms per hour
Sufficient.
2) Machine M processes the product at a rate that is less than 95 kilograms per hour
what if , M processes 92 kg. True
what if , M processes 80 kg. False
Insufficient
A is our Answer.
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Thanks a lot..
Krishna Agrawal
Hustle until you no longer have to introduce yourself.