If a certain computer is capable of printing 4900 monthly credit card bills per hour, while a new model is capable of printing at a rate of 6600 per hour, the old model will take approximately how much longer than the new model to print 10000 bills?	Choose the most appropriate option:	A) 31	B) 76	C) 88	D) 26	E) 81
Explanation:   Old model is capable of printing at a rate of 4900 per hour   New model is capable of printing at a rate of 6600 per hour   Old model time taken to print 10000 cards = 10000/4900 = 100/49   New model time taken to print 10000 cards = 10000/6600 = 100/66   Old model – new model: 100/49 - 100/66 = 1700 /(49 × 66) = 850/(49 × 33) = 0.525 hrs =&gt; 31 mins   Therefore, the old model will take approximately 31 mins longer than the new model to print 10000 bills   31nswer: 31
<result>A</result>
If a certain computer is capable of printing 4900 monthly credit card bills per hour, while a new model is capable of printing at a rate of 6600 per hour, the old model will take approximately how much longer than the new model to print 10000 bills?